15 Best Interview Questions to Ask in 2026 (Backed by Science)

Discover the 15 best interview questions backed by behavioral science. Use these to reveal a candidate's true personality, values, and potential.

Great interview questions do three things most people never think about: they reveal someone’s true personality under pressure, they speed-read a candidate’s values in minutes, and they build rapport that lasts well beyond the hiring decision.

But here’s what most interviewers (and candidates) get wrong: they rely on the same tired questions everyone has rehearsed a thousand times. “What’s your greatest weakness?” “Where do you see yourself in five years?” The candidate recites a script. The interviewer nods politely. Nobody learns anything.

Research tells a different story. A landmark meta-analysis by Schmidt and Hunter, covering eighty-five years of hiring data, found that structured behavioral interviews predict job performance about twice as well as unstructured, “go-with-your-gut” conversations.¹ Companies that use structured behavioral interviewing identify three times as many qualified candidates and see retention rates above 90% after one year.²

The questions below come from real hiring managers, CEOs, and experts from companies like ZipRecruiter, Evernote, and Curology, combined with research from the Science of People. They’re organized into three categories: behavioral questions (based on real past experience), situational questions (hypothetical scenarios), and creative questions (unconventional prompts that reveal thinking style).

What Are Behavioral Interview Questions?

Behavioral interview questions are structured prompts that ask candidates to describe specific past experiences, revealing patterns in how they handle challenges, collaborate with others, and make decisions under pressure. Unlike traditional questions that invite rehearsed answers, behavioral questions follow the principle that past behavior is the best predictor of future behavior. They typically begin with phrases like “Tell me about a time when…” or “Describe a situation where…”

How to Use the STAR Method (For Answering or Evaluating Answers)

Before diving into the questions, every interviewer and candidate needs to understand the STAR Method. Developed by DDI (Development Dimensions International) in 1974, it remains the gold standard for structuring behavioral interview answers.³

STAR stands for:

• Situation: Set the scene briefly. What was happening?
• Task: What was your specific responsibility?
• Action: What did you personally do? (This is the most important part.)
• Result: What happened? Use numbers when possible.

The most common mistake? Spending too long on the Situation and never getting to the Action. MIT’s career development office recommends spending about 50–60% of your answer on the Action step, because that’s what interviewers actually care about.⁴

If you’re the interviewer: Listen for specifics in the Action step. Vague answers like “We worked together to fix it” are a red flag. You want to hear what this person specifically did.

If you’re the candidate: Prepare 6–8 versatile stories from your last two to three years of work. Each story should be adaptable to different question types. A story about a delayed project might demonstrate leadership, problem-solving, and handling pressure.

Pro Tip: Harvard Business Review now recommends adding a fifth element — a Takeaway — where you connect your past experience directly to the role you’re interviewing for: “The takeaway for this role is that I can apply that same rapid problem-solving approach to your upcoming product launch.”⁵

Structured behavioral interviews predict job performance about twice as well as unstructured conversations.

The 15 Best Interview Questions

Behavioral Questions (Based on Real Past Experience)

These questions ask about actual events. They’re the most predictive type of interview question, with a validity coefficient roughly twice that of unstructured conversation.¹

#1. “What’s something you used to believe but no longer believe?”

This question explores someone’s ability to change and stay open-minded. One of the hardest parts about starting a new job is the learning curve — new processes, new culture, new relationships. Sometimes those new ways challenge someone’s deeply held assumptions.

This question unlocks a few key behaviors:

• Can they easily recall a time they changed their mind? If not, you might have someone who is very stuck in their ways.
• What was the magnitude of the change? If someone says, “I used to believe in the Easter Bunny and no longer do,” that signals a lack of seriousness. But if someone answers, “I used to believe charisma and leadership were genetic, but now I believe they can be learned, and leadership is a skill I’ve been working on” — that’s a candidate worth paying attention to.
• How do they describe the process of changing? Did they change because of evidence, a mentor, or a personal experience? The how reveals intellectual humility.

Action Step: If you’re a candidate, prepare a genuine answer that shows growth. Pick something professionally meaningful, not trivial.

#2. “Who were the competitors at your last company, and how did your company differentiate itself?”

This one comes from Ian Siegel, co-founder and CEO of ZipRecruiter. If anyone is an expert at hiring and interviewing, it’s Ian and his team. He uses this question because:

“I want to determine if the candidate had a strategic understanding of the business. Surprisingly, few candidates can answer this question. I am especially impressed by candidates who have a grasp of existing competitors, potential competitors, and what a disruptive, new market entrant could do.” — Ian Siegel

This works as a behavioral interview question because it taps into a way of thinking. Every great employee should know three basic things about their company:

1. The company’s mission
2. The company’s goals
3. The company’s competitors

When an employee is aware of all three — even if it doesn’t directly tie into their job — it shows they think whole-mindedly about why they do what they do.

Pro Tip: Candidates, before any interview, spend 20 minutes researching the company you’re applying to using this same framework. Know their mission, their top three competitors, and one thing that differentiates them. You’ll be ahead of 90% of applicants.

#3. “Tell me about your best and worst days at work.”

This question gauges someone’s outlook and perspective. It comes from Chris O’Neill, former CEO of Evernote. Here’s his insider interview tip:

“The answers are very revealing. ‘Best day’ answers demonstrate what makes that person tick, what motivates them. ‘Worst day’ answers tell whether a person is a team player — if their response focuses on what went wrong without taking any ownership, there is a good chance they won’t thrive in a collaborative environment.” — Chris O’Neill

Take this a step further: think about what your ideal answer to this question would be as an interviewer. If you were to ask your top performers this question, how would they answer? What examples would they give?

If you find a candidate whose answers mirror your top performers — that’s a strong signal.

Action Step: Interviewers, write down what you consider the ideal “best day” and “worst day” answers before the interview. Having a benchmark makes it much easier to evaluate candidates consistently.

#4. “If I called your current boss, what would they say about you?”

Fair warning: this question will get your candidate’s blood pumping. Anytime you ask about a previous boss, it creates pressure. That doesn’t mean it’s not useful. Here’s why:

• How does someone perform under pressure? This is a tough question even if their boss loved them. It’s hard to talk about yourself positively or negatively on the spot.
• How does someone frame themselves? Are they a boaster, a downer, humble, or a smooth-talker?
• How does someone talk about a past boss? Do they hold grudges? Show resentment? Offer genuine praise?

Chris M. Williams, CEO of pocket.watch, asks this question for one big reason:

“Interviewees tend to be very honest in their response because they anticipate that there’s an actual possibility I’ll make that call.” — Chris M. Williams

You can ask this question only if you’re actually willing to call their previous boss — especially if you hear something that piques your interest and you want to confirm it.

#5. “Describe the last significant conflict you had at work and how you handled it.”

No one likes conflict. But it happens. How will your candidate deal with it? History is your greatest help. This question reveals how they view conflict and how they might handle it in your organization. Watch for honest, specific answers — and red flags like obvious deflection or blame-shifting.

This question comes from Kent Porter, founder and CEO of Porter Leadership Development:

“Savvy hiring authorities respond well when I say, ‘We hire them for what they know, we fire them for who they are.’ The question now is how do we determine who they are? Questions like this help to discern who a candidate is.” — Kent Porter

Be prepared to ask follow-up questions. Get details, use specifics. The more you know about how they handled the past, the more you’ll know about how they might handle the future.

Action Step: Use the STAR Method to evaluate their answer. Did they describe a specific Situation? Did they own their Actions? Did they share a concrete Result? If any of those are missing, probe deeper.

#6. “Tell me about a time you had to quickly learn something new to complete a project.”

This is one of the most valuable behavioral questions for 2026 hiring, and it’s gaining popularity fast.⁶ With AI tools, new software, and shifting business priorities reshaping every industry, adaptability has become the single most sought-after trait in candidates.

What to listen for:

• Speed of learning: How quickly did they get up to speed?
• Learning strategy: Did they watch tutorials, ask colleagues, read documentation, or experiment? Their approach reveals how they’ll onboard at your company.
• Self-awareness about gaps: The best candidates admit what they didn’t know and explain how they closed the gap.

Research from Harvard Business School suggests that “learning agility” — the ability to learn from experience and apply those lessons to new situations — is a stronger predictor of long-term leadership success than raw intelligence.⁷

Pro Tip: Candidates, pick a story where the stakes were real and the timeline was tight. “I had to learn Salesforce in a weekend for a Monday client demo” is far more compelling than “I took an online course over six months.”

#7. “Tell me about a time you received feedback that was difficult to hear. How did you respond?”

Coachability is one of the most valued traits in new hires, and this question tests it directly.⁶ The best candidates don’t just say they’re “open to feedback” — they can point to a specific moment when feedback stung, and they used it to get better.

Red flags to watch for:

• Dismissing the feedback (“They were wrong about that”)
• Vague answers with no specific example
• Focusing entirely on the emotional reaction without describing any change in behavior

Green flags:

• Naming a specific piece of feedback
• Describing the initial emotional reaction honestly (“My first instinct was to get defensive”)
• Explaining what they changed as a result

The best candidates don’t just say they’re open to feedback — they can point to a specific moment when feedback stung and they used it to get better.

#8. “Tell me about a time you had to lead or influence others without having formal authority.”

This question has become a favorite among hiring managers because it reveals “leading without a title” — the ability to influence outcomes even when you’re not the boss.⁶ In flat organizations, cross-functional teams, and remote environments, this skill matters enormously.

Listen for:

• How they built buy-in: Did they use data, storytelling, relationship-building, or some combination?
• How they handled resistance: What happened when someone pushed back?
• The outcome: Did their influence produce a measurable result?

Satya Nadella demonstrated this principle when he took over as Microsoft’s CEO. His first company-wide email used the word “we” forty-five times and “I” only four times. He led through inclusion, not authority — and it transformed the company’s culture.

Action Step: Candidates, even if you’ve never had a management title, you’ve influenced people. Think about a time you convinced a team to adopt a new process, rallied colleagues around an idea, or mentored someone informally.

Situational Questions (Hypothetical Scenarios)

These questions present a hypothetical situation and ask what the candidate would do. They’re less predictive than behavioral questions, but they’re useful for testing creative thinking and judgment.¹

#9. “You have two teleportation devices. Where do you place them and why?”

This gem comes from David Lortscher, founder and CEO of Curology:

“Questions that are open-ended test for critical thinking instead of pure knowledge. One candidate told us they’d place one device in their home and one on the moon, because they want to explore space and make new discoveries. That may translate into someone who displays expansive thinking, is curious, and is hungry to learn.” — David Lortscher

This question might feel irrelevant or silly — and it is a little unconventional. But that’s the point. How does your candidate think on the spot? How creative can they be? What does their answer reveal about their priorities?

This is also a great opportunity to lighten the mood. If you want to build rapport, share your own answer and have a laugh together.

Special Note: This is a situational question, not a behavioral one — it asks about a hypothetical rather than a real past experience. Google famously abandoned brain-teaser questions after internal research showed they didn’t predict job performance.⁸ But well-designed situational questions like this one still have value because they test reasoning process, not trivia.

#10. “If you didn’t have to work, why would you come into the office?”

This question comes from Gautam Gupta, co-founder of NatureBox. It looks directly at motivations and interest. You can gauge someone’s why very quickly — do they work for the money, the status, the learning, the relationships?

In Vanessa’s book Captivate, she presents the concept of a Primary Value — the underlying motivation that drives a person’s decisions, actions, and desires. This idea builds on research by psychologist Shalom Schwartz, whose Theory of Basic Human Values identified ten core values that drive human behavior across cultures, including achievement, security, benevolence, and self-direction.⁹ Understanding which values matter most to a candidate reveals whether they’ll truly thrive in a role.

Here’s what Gupta has to say:

“I try to understand the person’s motivations and interest. I also try to understand where they want to take their career and how NatureBox fits within that path. Lastly, I’m looking to gauge their intellectual curiosity.” — Gautam Gupta

Think of your ideal answer to this question. What do you hope will drive your potential employees?

#11. “How would you handle a situation where your team missed an important deadline?”

This situational question tests accountability and problem-solving without requiring the candidate to have experienced this exact scenario. What you’re listening for is their process, not a perfect answer.

Strong responses typically include:

1. Immediate triage: Assessing the damage and communicating with stakeholders
2. Root cause analysis: Understanding why the deadline was missed, not just reacting
3. Ownership language: “I would take responsibility for…” rather than “I’d figure out who dropped the ball”
4. Prevention thinking: What systems or processes they’d put in place to prevent it from happening again

Research on deadline-related interview questions shows that interviewers aren’t expecting perfection — they’re testing whether candidates take ownership or shift blame.¹⁰

Creative Questions (Unconventional Prompts)

These questions break the standard interview pattern and reveal personality, social skills, and presence under pressure.

#12. “Are you working on anything exciting outside of work?”

Getting a sense of someone’s life outside of work isn’t about invading their privacy — it’s about understanding cultural fit and how they’ll connect with colleagues. Their answers can be surprisingly revealing:

• If they can’t think of anything: It could indicate poor work-life balance. If someone is consumed by work, they might not have bandwidth for anything else. Does that work for your culture?
• If they say something generic: This could signal nerves rather than a lack of creativity. How important is easy small talk to your team’s dynamic?
• If they have a fascinating or surprising answer: You get a sneak peek into who they really are. How does that fit with your company?

Their comfort level with this question also reveals how this candidate might socialize with colleagues, which matters for work environment chemistry.

#13. “Wait… do you remember all of our names?”

This idea comes from Gil Addo of RubiconMD, and it’s a genuinely interesting test of behavior:

“We like to have a little fun with our sales candidates, while testing their ability to connect with people. They act like the interview is done then call them back in and have them go over everyone they met, including their names, and what they talked about. We end by asking directly, ‘Did you get the job?’ It’s a great way to gauge their self-confidence and see if they can hold their own from start to finish in an unpredictable situation.” — Gil Addo

This is intense, but the skills of remembering names, projecting self-confidence, and quickly memorizing people’s details are essential for sales roles. Why not test those abilities right in the interview room?

Special Note: Use this one selectively. It works well for client-facing and sales roles where relationship memory matters. For technical or introverted roles, it could feel unfair.

#14. “What question did you expect me to ask that I haven’t?”

This is a sharper version of the classic “Is there anything else you’d like to share?” It catches candidates off-guard in a productive way, because it forces them to reveal what they’ve been preparing for — which tells you what they think this role is really about.

If a candidate expected a technical question you never asked, that might signal they see the role differently than you do. If they expected a question about leadership and you focused on technical skills, that gap is worth exploring.

This question also gives ambitious candidates a chance to showcase preparation and self-awareness. The best candidates will pivot this into a brief pitch for their strongest qualification.

#15. “Is there something I didn’t ask that I should have asked you?”

Giving candidates an opportunity to showcase a special talent, need, or request is essential. If your interview is too carefully choreographed, you won’t give a candidate sufficient space to share something important. This is their chance to shine — and they should take it.

Watch for these signals:

• If they say everything was covered, you might wonder how prepared they were, or if they want to go above and beyond.
• If they use this moment to address a concern or highlight a unique qualification, that shows strategic thinking.
• If they overshare, that tells you something about their judgment and boundaries.

5 Questions Every Candidate Should Ask the Interviewer

Saying “No, I don’t have any questions” is almost universally interpreted as a lack of interest. The end of an interview is your best chance to evaluate whether the company is right for you. Research shows that cultural misalignment is one of the top reasons employees leave jobs within the first year.¹¹

Here are five questions that impress interviewers and give you genuinely useful information:

1. “What are the most immediate priorities for this role in the first 90 days?” This shows you’re already thinking about delivering results, not just landing the offer.

2. “How do you measure success for this position?” If the interviewer can’t answer this clearly, that’s a red flag about role clarity.

3. “What’s your favorite thing about working here, and what’s one thing you’d change?” The second half of this question is the key — it invites honesty and signals that you’re evaluating them too.

4. “Where do you see the team or company heading in the next three years?” This demonstrates long-term thinking and helps you assess growth potential.

5. “Do you have any hesitations about my fit for this role that I can address right now?” This is bold but powerful. It surfaces hidden objections and gives you a final chance to make your case before you walk out the door.

Action Step: Pick two or three of these questions and customize them for each interview. Write them on a notepad and bring them with you — it shows preparation, not weakness.

The 5 Hardest Interview Questions (and Why They Trip People Up)

These are the questions candidates dread most, according to hiring managers and career researchers. The common thread: they all test self-awareness and honesty under pressure.

1. “Tell me about a time you failed.” Hard because it requires genuine vulnerability. The best answers own the failure completely, describe what was learned, and explain what changed.

2. “What is your greatest weakness?” Hard because the obvious answers (“I’m a perfectionist”) are transparent, and the honest ones feel risky. The winning approach: name a real but non-critical weakness, briefly explain its downside, then detail the specific steps you’ve taken to improve.¹²

3. “Why should we hire you over other candidates?” Hard because you don’t know who you’re competing against. Focus on what makes your specific combination of skills and experience uniquely valuable for this role.

4. “Where do you see yourself in five years?” Hard because it requires balancing ambition with realism. Spend about 70% of your answer on how you’ll grow within the company and 30% on how that growth benefits the organization.

5. “Tell me about a gap in your resume.” Hard because it feels defensive. The best approach: explain honestly, then immediately pivot to what you learned or accomplished during that time.

How to Talk About Strengths and Weaknesses

These questions appear in nearly every interview, and most people handle them poorly.

Strengths

Pick two or three strengths that directly match the job description, then back each one with a specific example. Harvard Business Review recommends framing strengths as stories, not adjectives.¹² Don’t just say “I’m detail-oriented.” Say: “My attention to detail caught a reporting error that saved our team from a $15,000 revision.”

Weaknesses

Name a real (but non-critical) weakness, briefly explain its downside, then detail the specific steps you’ve taken to improve. Avoid cliches like “I’m a perfectionist” or “I work too hard” — hiring managers see through these instantly.

Five examples of safe weaknesses to mention:

1. Public speaking — common, clearly improvable, and shows self-awareness
2. Difficulty delegating — signals high standards while acknowledging a growth area
3. Being overly self-critical — indicates drive for quality
4. Discomfort asking for help — highlights independence while showing you know it’s a limitation
5. Struggling with saying no — shows willingness to help while acknowledging boundary-setting as a skill to develop

Every answer is a behavioral clue — listen to what candidates say, but watch how they say it.

The Science of First Impressions in Interviews

Research from Princeton shows that interviewers form lasting first impressions in as little as seven seconds.¹³ These snap judgments influence the final hiring decision in roughly 85% of cases, thanks to the primacy effect (first information sticks) and confirmation bias (people look for evidence that confirms their initial impression).

This means how you walk in, make eye contact, and deliver your first sentence matters enormously.

And here’s what the research actually says about nonverbal communication in interviews: when your words don’t match your body language, people overwhelmingly trust what they see over what they hear. About 67% of employers say they’ve rejected candidates based on poor eye contact, posture, or handshake alone.¹⁴ Your nonverbal signals aren’t “60% of communication” — that’s a myth based on a misinterpretation of Albert Mehrabian’s research, which only applied to the communication of feelings and attitudes.¹⁵ But in the high-stakes context of an interview, where both sides are reading each other for trustworthiness, your body language carries enormous weight.

Action Step: Before your next interview, practice your entrance. Walk in with your shoulders back, make eye contact with each person in the room using a slow sweep (not a frantic scan), and deliver a firm handshake. These first seven seconds set the tone for everything that follows.

Using AI Tools for Interview Preparation

AI-powered interview preparation tools have become a significant resource for candidates. Research suggests that candidates using AI practice tools report higher confidence levels and better outcomes in actual interviews.¹⁶

Here are three ways to use AI tools effectively:

1. Record practice answers and get feedback on filler words, pacing, and clarity. Tools like Google Interview Warmup (free) and Yoodli provide objective data on your delivery.
2. Generate practice questions tailored to specific roles. Feed the job description into an AI tool and ask it to create behavioral questions based on the listed requirements.
3. Run mock interviews with AI interviewers. Several platforms now simulate realistic interview conversations and score your STAR responses.

Special Note: AI tools are best for building “muscle memory” around delivery. They still struggle to evaluate cultural fit, emotional depth, or the authenticity of your stories. Use AI for practice, but save your best human energy for building genuine rapport in the actual interview.

Best Interview Questions Takeaway

Every answer is a behavioral clue. Listen closely to candidates’ answers and watch how they answer. When words and body language don’t match, trust what you see.

Here are your action steps:

1. Use behavioral questions as your foundation. They predict job performance about twice as well as unstructured conversation. Ask about real past experiences, not hypotheticals.
2. Learn the STAR Method. Whether you’re asking or answering, this framework (Situation, Task, Action, Result) keeps responses focused and revealing.
3. Mix question types strategically. Use 70% behavioral questions, 20% situational, and 10% creative to get a complete picture of each candidate.
4. Prepare a scoring rubric before the interview. Define what a “great,” “good,” and “poor” answer looks like for each question so you’re evaluating consistently.
5. Always ask follow-up questions. The real gold is in the details. When a candidate gives a surface-level answer, dig deeper: “What specifically did you do?” “What was the result?”
6. Candidates: prepare 6–8 versatile STAR stories that can be adapted to different questions, and practice them out loud within a 2-minute window.
7. Never say “I don’t have any questions.” Use the end of the interview to evaluate whether the company is right for you.