Brain Teasers and Puzzles

653 topics in this forum

1. :)

   By playdo, March 24, 2007
   • 7 replies
   • 2.1k views
   • 
   • Pangloss
   • March 24, 2007

2. "Easy" equation

   By Trond, December 23, 2005
   • 9 replies
   • 2.4k views
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   • Helix
   • December 29, 2005

3. "if 2 is not equal to 5"

   By Genady, October 21, 2024
   • 7 replies
   • 3.3k views
   • 
   • Genady
   • October 22, 2024

4. "StoveInAField" (Formally "This is Not Porn")

   By alan2here, June 27, 2007
   • 4 replies
   • 3.6k views
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   • alan2here
   • June 29, 2007

5. "What the Tortoise Said to Achilles"

   By murshid, November 19, 2010
   • 1 reply
   • 1.8k views
   • 
   • Schrödinger's hat
   • January 27, 2011

6. [Need Help] Magician's Prediction of 2010 FIFA World Cup Winner Cryptogram

   By cryptofreak888, June 18, 2010
   • 8 replies
   • 2.5k views
   • 
   • JohnB
   • June 21, 2010

7. # pattern

   By playdo, January 12, 2007
   • 2 replies
   • 1.5k views
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   • playdo
   • January 12, 2007

8. 1? 1 2

   By Tigerbeam, October 5, 2005
   • 28 replies
   • 5.9k views
   • 
   • aj47
   • February 28, 2006

9. 10 Unique Metals

   By Guest meghamann, June 8, 2005
   • 7 replies
   • 5.8k views
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   • YT2095
   • June 11, 2005

10. 12,1,1,1,2,1

    By why?, December 12, 2005
    • 20 replies
    • 4.5k views
    • 
    • rakuenso
    • December 20, 2005

11. 13 BRAIN TEASERS TO MAKE YOU THINK HARD AND TO BOOST YOUR BRAIN POWER

    By ash9898, July 1, 2018
    • 0 replies
    • 1.6k views
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    • ash9898
    • July 1, 2018

12. 17 Answers given away on the Has-Dick Test

    By john321, September 15, 2005
    • 6 replies
    • 10.1k views
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    • serg
    • December 12, 2005

13. 17 apples

    By Genady, December 25, 2021
    • 11 replies
    • 2.2k views
    • 
    • Genady
    • April 25, 2023

14. 2 easy math riddles

    By coke, April 1, 2009
    • 20 replies
    • 9.9k views
    • 
    • Lkreyna2
    • October 19, 2009

15. 2 Riddles

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

16. 2 teasers

    By Snail13579, May 30, 2008
    • 12 replies
    • 5.3k views
    • 
    • sandy85
    • September 4, 2009

17. 2 Very cool chess puzzles

    By Lord Antares, February 6, 2017
    • 14 replies
    • 5.2k views
    • 
    • Lord Antares
    • February 8, 2017

18. 21 Jan 2022 Time Pass Puzzle

    By Commander, January 21, 2022
    • 1 reply
    • 1.6k views
    • 
    • Commander
    • February 22, 2022

19. 3 gold coin puzzle

    By TimeSpaceLightForce, October 18, 2012
    • 4 replies
    • 2.4k views
    • 
    • TimeSpaceLightForce
    • October 20, 2012

20. 3 guys pay the same

    By JustinW, December 12, 2014
    • 4 replies
    • 2k views
    • 
    • Greg H.
    • December 12, 2014

21. 31 using 5 threes

    By softdragonz, December 12, 2005
    • 3 replies
    • 1.9k views
    • 
    • softdragonz
    • December 14, 2005

22. 3d logic

    By abskebabs, June 8, 2006
    • 0 replies
    • 1.6k views
    • 
    • abskebabs
    • June 8, 2006

23. 3D PRISM VIEWING

    By sunshaker, October 27, 2014
    • 0 replies
    • 1.8k views
    • 
    • sunshaker
    • October 27, 2014

24. 3s to make 31

    By Sriman Dutta, October 18, 2016
    • 2 replies
    • 1.5k views
    • 
    • Sriman Dutta
    • October 18, 2016

25. 4 questions

    By FunkyAce07, November 28, 2012
    • 11 replies
    • 2.9k views
    • 
    • John Cuthber
    • January 7, 2013