Question bank

4,310 interview questions, answered.

Reference answers, what the interviewer is really testing, how it is graded, and the follow-ups that come next.

Easy 190Medium 2,498Hard 982
Filters · onDifficulty, topic, company

478 questions

  1. 49Design an algorithm to rank ads in the Google Play Store. Include primary and secondary success metrics.HardDataTechnical· Google
  2. 50Design dynamic pricing for Lyft.HardDataProduct· Lyft
  3. 51Design an elevator algorithm to pick up guests.MediumDataTechnical· AADP, Google
  4. 52Design price alert notifications for the Coinbase app.MediumDataProduct· Coinbase
  5. 53Design a dashboard that helps sales leaders monitor their product's performance.MediumDataProduct· Google
  6. 54Design a system to track reviews abuse on Amazon.com.HardDataProduct· Amazon, DoorDash
  7. 55How would you determine the success of Instagram search?MediumData· TikTok
  8. 56How would you determine insurance pricing for Waymo?HardData· Google
  9. 57You are a grocery store owner/manager. How do you determine how many self-checkout machines you need?MediumData· Google
  10. 58How would you determine success for Instagram Reels?MediumDataProduct· IInstagram, Meta
  11. 59How would you determine the success of LinkedIn's Job feature?MediumData· LinkedIn
  12. 60Propose solutions to optimize the speed of hiring developers at Revolut.HardDataProduct· Revolut
  13. 61Diagnose 23andMe's 33% drop in conversion.HardDataProduct· 23andMe
  14. 62Diagnose a 40% increase in first month churn on HelloFresh.HardDataProduct· HelloFresh
  15. 63Diagnose a 25% decrease in conversions on Opencare.HardDataProduct· OOpencare
  16. 64Diagnose a 35% decrease in email open rates on SendGrid.HardDataProduct· SSendGrid
  17. 65Diagnose a 15% drop in active users on Disney+.HardDataProduct· Disney
  18. 66Diagnose a 25% drop in conversion on Wealthsimple's landing page.HardDataProduct· Wealthsimple
  19. 67Diagnose a 20% drop in Facebook Groups usage.HardDataProduct· Meta
  20. 68Diagnose a 35% drop in usage on Invision.HardDataProduct· IInvision
  21. 69Diagnose a 35% drop in retention on Salesforce.HardDataProduct· Salesforce
  22. 70Diagnose a 45% drop in ride orders on Lyft.HardDataProduct· Lyft
  23. 71Diagnose a 25% decrease in free sign ups on Notion.MediumDataProduct· Notion
  24. 72Diagnose a 25% decrease in song listens on Spotify.MediumDataProduct· Spotify