Brain Teasers and Puzzles

653 topics in this forum

1. The 16 fundamental logical operators

   By Jerry Wickey, August 31, 2013
   • 0 replies
   • 5.3k views
   • 
   • Jerry Wickey
   • August 31, 2013

2. Daedalus' Seventh Challenge

   By Daedalus, July 27, 2013
   • 5 replies
   • 3.6k views
   • 
   • Daedalus
   • August 20, 2013

3. Who Really Shot first?

   By hypervalent_iodine, July 31, 2013
   • 5 replies
   • 2.3k views
   • 
   • Delta1212
   • August 1, 2013

4. A phenomenal mathematical riddle involving the axiom of choice

   By Jrthedawg, July 22, 2013
   • 1 reply
   • 2.2k views
   • 
   • imatfaal
   • July 22, 2013

5. Daedalus' Sixth Challenge 1 2

   By Daedalus, July 13, 2013
   • 25 replies
   • 7.8k views
   • 
   • Delta1212
   • July 20, 2013

6. REAL Einstein puzzle

   By EquisDeXD, October 3, 2012
   • 6 replies
   • 3.5k views
   • 
   • ydoaPs
   • July 6, 2013

7. Magic switchbox...

   By Externet, June 12, 2013
   • 6 replies
   • 2.9k views
   • 
   • michel123456
   • June 14, 2013

8. insight problem 2

   By daniton, June 12, 2013
   • 3 replies
   • 1.6k views
   • 
   • daniton
   • June 14, 2013

9. Story riddle

   By questionposter, April 22, 2012
   • 23 replies
   • 5.6k views
   • 
   • jimmyjammy
   • June 14, 2013

10. Insight Problem

    By daniton, May 26, 2013
    • 7 replies
    • 2.4k views
    • 
    • michel123456
    • May 29, 2013

11. LR puzzle

    By staffingby, April 1, 2013
    • 16 replies
    • 7.8k views
    • 
    • md65536
    • May 12, 2013

12. Daughter(s)

    By ydoaPs, January 9, 2013
    • 10 replies
    • 3k views
    • 
    • MonDie
    • April 15, 2013

13. Bug on a Band

    By elfmotat, March 4, 2013
    • 7 replies
    • 6.2k views
    • 
    • King Thando Mathe
    • April 3, 2013

14. Escaped cow puzzle 1

    By md65536, June 22, 2012
    • 22 replies
    • 8.7k views
    • 
    • Consistency
    • February 27, 2013

15. Einstein's riddle

    By space noob, May 15, 2012
    • 16 replies
    • 8.9k views
    • 
    • johnah
    • February 18, 2013

16. One with numbers in cells

    By oldsibir, January 12, 2013
    • 2 replies
    • 1.7k views
    • 
    • oldsibir
    • January 15, 2013

17. 4 questions

    By FunkyAce07, November 28, 2012
    • 11 replies
    • 2.7k views
    • 
    • John Cuthber
    • January 7, 2013

18. Riddle Can't find the answer online

    By ché, May 23, 2010
    • 12 replies
    • 4.5k views
    • 
    • Oxide
    • January 2, 2013

19. Rock n Roll Trivia

    By Moontanman, December 4, 2012
    • 9 replies
    • 2.5k views
    • 
    • Moontanman
    • December 14, 2012

20. Finding letter values

    By TimeSpaceLightForce, December 9, 2012
    • 2 replies
    • 2.1k views
    • 
    • TimeSpaceLightForce
    • December 12, 2012

21. Anagrammathic Equation

    By TimeSpaceLightForce, December 5, 2012
    • 0 replies
    • 1.5k views
    • 
    • TimeSpaceLightForce
    • December 5, 2012

22. Cone volume

    By C Raghav, December 2, 2012
    • 2 replies
    • 2k views
    • 
    • John Cuthber
    • December 2, 2012

23. What Number Comes Next?

    By GlassPilot, October 20, 2012
    • 10 replies
    • 5.2k views
    • 
    • HuMoDz
    • November 2, 2012

24. Missing one

    By TimeSpaceLightForce, October 27, 2012
    • 4 replies
    • 1.7k views
    • 
    • TimeSpaceLightForce
    • October 29, 2012

25. Escaped cow puzzle 4

    By md65536, June 25, 2012
    • 4 replies
    • 2.5k views
    • 
    • md65536
    • October 25, 2012