Brain Teasers and Puzzles

648 topics in this forum

1. Is it Impossible? 1 2

   By foodchain, July 29, 2007
   • 49 replies
   • 10.3k views
   • 
   • hemantc007
   • August 18, 2009

2. complexities

   By Norman Albers, April 9, 2009
   • 4 replies
   • 2.7k views
   • 
   • charmeddvd123
   • July 28, 2009

3. Primitive teasers

   By Shadow, October 23, 2008
   • 8 replies
   • 3k views
   • 
   • charmeddvd123
   • July 28, 2009

4. Math Cryptogram

   By Joker112, May 28, 2009
   • 4 replies
   • 4.6k views
   • 
   • Jacques
   • July 23, 2009

5. Math Puzzle of the Week

   By Imaginer1, October 22, 2008
   • 16 replies
   • 4.3k views
   • 
   • Pericles
   • July 8, 2009

6. An impossible brain teaser 1 2

   By Reaper, February 16, 2008
   • 42 replies
   • 14.7k views
   • 
   • Phi for All
   • July 1, 2009

7. I'm Brain Games Obsessed

   By rachida, May 19, 2009
   • 1 reply
   • 1.9k views
   • 
   • feign_ignorence
   • May 21, 2009

8. help on cryptogram

   By jame334, June 26, 2008
   • 9 replies
   • 5.4k views
   • 
   • Joker112
   • May 21, 2009

9. Balance the Balls!

   By Alan McDougall, July 8, 2008
   • 16 replies
   • 4.5k views
   • 
   • Royce
   • May 20, 2009

10. Cryptogram

    By s4orce, May 11, 2009
    • 1 reply
    • 1.5k views
    • 
    • Royce
    • May 20, 2009

11. Auditorium

    By Bettina, February 20, 2009
    • 6 replies
    • 2.9k views
    • 
    • Mag
    • April 20, 2009

12. A cryptogram challenge

    By illusion_21, March 15, 2009
    • 4 replies
    • 1.9k views
    • 
    • cameron marical
    • March 19, 2009

13. Periodic Table Scrabble.

    By YT2095, August 4, 2005
    • 23 replies
    • 18.3k views
    • 
    • BrianJonsson
    • December 16, 2008

14. Geniuses, Help Me To Crack This "Big Sizes" Number Puzzle...

    By wustvn, July 20, 2008
    • 1 reply
    • 2.2k views
    • 
    • wustvn
    • November 21, 2008

15. Online Puzzle and Brain Teaser: Comic Strip

    By Smart-Kit, November 14, 2008
    • 0 replies
    • 2.3k views
    • 
    • Smart-Kit
    • November 14, 2008

16. Intelligence Test 1 2 3

    By Donut.Hole, April 24, 2008
    • 55 replies
    • 11.6k views
    • 
    • SBOMP
    • September 6, 2008

17. Mythbusters

    By QuantumTechGeek, August 5, 2008
    • 6 replies
    • 2.9k views
    • 
    • DJBruce
    • August 29, 2008

18. Box Packing! 1 2

    By johny321, June 17, 2005
    • 42 replies
    • 9.9k views
    • 
    • msto01
    • August 21, 2008

19. criss-cross numbers puzzle.

    By dstebbins, August 19, 2008
    • 4 replies
    • 3.5k views
    • 
    • dstebbins
    • August 20, 2008

20. games

    By mrsemmapeel, August 15, 2008
    • 1 reply
    • 1.8k views
    • 
    • Phi for All
    • August 16, 2008

21. Physics game 1 2

    By Bettina, August 2, 2008
    • 39 replies
    • 6.1k views
    • 
    • Kyrisch
    • August 13, 2008

22. brain teaser bridge question

    By usmaniharis, July 30, 2008
    • 3 replies
    • 2.9k views
    • 
    • Pre4edgc
    • August 3, 2008

23. Not Pron, the hardest puzzle on the internet

    By Snail13579, May 13, 2008
    • 18 replies
    • 4.5k views
    • 
    • CrazCo
    • July 11, 2008

24. Pills o' poison

    By h4tt3n, July 9, 2008
    • 12 replies
    • 5.5k views
    • 
    • h4tt3n
    • July 10, 2008

25. Driving Problem

    By DJBruce, July 8, 2008
    • 14 replies
    • 3.2k views
    • 
    • ecoli
    • July 10, 2008