Brain Teasers and Puzzles

648 topics in this forum

1. very fast drone

   By Itoero, March 24, 2018
   • 4 replies
   • 1.3k views
   • 
   • Itoero
   • March 24, 2018

2. Horse-sense 1 2

   By Tub, February 19, 2018
   • 26 replies
   • 5.4k views
   • 
   • Hypsibius
   • March 22, 2018

3. Turtle Soup. 1 2

   By LastHit, July 27, 2013
   • 34 replies
   • 48.9k views
   • 
   • Hypsibius
   • March 20, 2018

4. round peg and square hole

   By Strange, March 11, 2018
   • 0 replies
   • 1.5k views
   • 
   • Strange
   • March 11, 2018

5. Riddle

   By DanTrentfield, January 17, 2018
   • 1 reply
   • 1.5k views
   • 
   • alchimie
   • January 24, 2018

6. 2 Riddles

   By bradley55, January 23, 2018
   • 2 replies
   • 1.3k views
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   • Lord Antares
   • January 23, 2018

7. Test of an Examiner

   By Spiri.Of.Genius, January 11, 2018
   • 3 replies
   • 1.9k views
   • 
   • swansont
   • January 14, 2018

8. high jump+roll

   By Itoero, December 15, 2017
   • 3 replies
   • 1.7k views
   • 
   • J.C.MacSwell
   • January 3, 2018

9. Missing Number

   By Adam Gameston, December 18, 2017
   • 2 replies
   • 1.7k views
   • 
   • OldChemE
   • December 23, 2017

10. Tire spots

    By Butch, September 28, 2017
    • 5 replies
    • 1.9k views
    • 
    • Butch
    • November 2, 2017

11. Possibility to survive a building jump? 1 2 3

    By LabRat1, July 25, 2017
    • 54 replies
    • 7.8k views
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    • Itoero
    • October 10, 2017

12. If we can drink a drink why can't we food a food?

    By HiMyNameIs......, July 16, 2017
    • 14 replies
    • 3.9k views
    • 
    • Delta1212
    • July 29, 2017

13. The Overcrowded Prison 1 2

    By GeniusIsDisruptive, July 10, 2017
    • 42 replies
    • 6.2k views
    • 
    • swansont
    • July 23, 2017

14. Find the Magic Square !

    By Commander, May 22, 2017
    • 6 replies
    • 3.9k views
    • 
    • Commander
    • June 29, 2017

15. Solve this if you can ! 1 2 3 4

    By Commander, December 17, 2014
    • 96 replies
    • 17.8k views
    • 
    • Commander
    • June 26, 2017

16. New brain teaser YT channel

    By ScienceDennis112, June 24, 2017
    • 0 replies
    • 1.4k views
    • 
    • ScienceDennis112
    • June 24, 2017

17. Alice in the tunnel.

    By studiot, May 13, 2017
    • 24 replies
    • 4.6k views
    • 
    • Zolobrine
    • May 22, 2017

18. Bob and Alice Secure Email

    By TakenItSeriously, May 12, 2017
    • 2 replies
    • 2k views
    • 
    • TakenItSeriously
    • May 12, 2017

19. The unanswered puzzle

    By TimeSpaceLightForce, November 11, 2016
    • 13 replies
    • 8.6k views
    • 
    • Handy andy
    • May 11, 2017

20. Magic?

    By goldglow, April 21, 2017
    • 9 replies
    • 2.6k views
    • 
    • Delta1212
    • May 4, 2017

21. More Magic?

    By goldglow, April 22, 2017
    • 3 replies
    • 1.7k views
    • 
    • Raider5678
    • April 22, 2017

22. Weighing the Merchandise !

    By Commander, April 3, 2017
    • 7 replies
    • 1.8k views
    • 
    • Commander
    • April 14, 2017

23. Bears breakfast

    By TimeSpaceLightForce, March 30, 2017
    • 21 replies
    • 3.9k views
    • 
    • TimeSpaceLightForce
    • April 9, 2017

24. Palindromes by multiplication

    By andreis, February 12, 2017
    • 22 replies
    • 7.8k views
    • 
    • Commander
    • April 5, 2017

25. Poison in a Glass

    By TimeSpaceLightForce, October 20, 2012
    • 12 replies
    • 6.1k views
    • 
    • TimeSpaceLightForce
    • March 30, 2017