Probability + Brainteasers

Brainteasers

153 questions

Progress
Access
  1. Special Date
    PREMIUM Not completed
  2. Digits to Infinity
    FREE Not completed
  3. Distinct Digits
    PREMIUM Not completed
  4. Cutting a Cube: Sufficient Condition
    PREMIUM Not completed
  5. Cutting a 3 × 3 × 3 Cube: Necessary Condition
    PREMIUM Not completed
  6. Bells
    PREMIUM Not completed
  7. Shortest Walk: Cubic Room
    PREMIUM Not completed
  8. Safe Cracking: Tricky
    FREE Not completed
  9. 3 Smart Men and 3 Hats
    FREE Not completed
  10. Super Cool LCM Question
    PREMIUM Not completed
  11. Hanoi Towers
    PREMIUM Not completed
  12. Cube Diagonal Pile
    PREMIUM Not completed
  13. Age Ambiguity
    PREMIUM Not completed
  14. 100 Tigers and 1 Sheep
    PREMIUM Not completed
  15. Packing 1×1×4 Bricks in a 6×6×6 Box
    PREMIUM Not completed
  16. Calendar cubes
    PREMIUM Not completed
  17. Last ball
    PREMIUM Not completed
  18. Chameleon colors
    PREMIUM Not completed
  19. Prisoners Rainbow Hat
    PREMIUM Not completed
  20. 6 people: Pigeonhole's Principle
    PREMIUM Not completed
  21. Strong Induction: Coin Split Problem
    PREMIUM Not completed
  22. Stock Converges to Zero
    FREE Not completed
  23. Sum of Digits
    PREMIUM Not completed
  24. Pirates in Circle
    FREE Not completed
  25. 50 Coins Add to a Dollar
    FREE Not completed
  26. Minimum Pizza Pieces
    PREMIUM Not completed
  27. Maximum Pizza Pieces
    PREMIUM Not completed
  28. Diagonal Cut I (9 x 10)
    PREMIUM Not completed
  29. Diagonal Cut II (8 x 12)
    FREE Not completed
  30. Ratio of Both Halves
    PREMIUM Not completed
  31. Game of Discarding Cards
    PREMIUM Not completed
  32. Total Games in a Season
    PREMIUM Not completed
  33. House of Cards
    PREMIUM Not completed
  34. Induction: Breaking Chocolate
    FREE Not completed
  35. Outside of the Box: Balls in a Cup
    PREMIUM Not completed
  36. Pigeonhole Principle: Birthday month
    PREMIUM Not completed
  37. Symmetry: Quarters on a Table
    FREE Not completed
  38. 100 Rocks: Virtu
    FREE Not completed
  39. Game of Chords
    PREMIUM Not completed
  40. Lily Pads 1
    PREMIUM Not completed
  41. Lily Pads 2
    FREE Not completed
  42. Lily Pads 3
    FREE Not completed
  43. Symmetry: Chips on the Table
    PREMIUM Not completed
  44. Koi Population
    PREMIUM Not completed
  45. Working Backwards: Shouting 50
    PREMIUM Not completed
  46. Series Summation: Squares on a nxn Grid
    FREE Not completed
  47. Series Summation: Squares on an n × m Grid
    PREMIUM Not completed
  48. Rectangles on an n × m Grid
    PREMIUM Not completed
  49. Covering a Chessboard
    PREMIUM Not completed
  50. 3D Rectangles on a Cube
    PREMIUM Not completed

Premium question

This question is only available to Premium/Premium+ users. View plans and pricing.

View plans and pricing