Brain Teasers and Puzzles

639 topics in this forum

1. what is this? 1 2 3

   By gene, November 11, 2004
   • 72 replies
   • 9.4k views
   • 
   • chemfreak
   • April 4, 2006

2. What is this?

   By zapatos, March 5, 2012
   • 0 replies
   • 1.1k views
   • 
   • zapatos
   • March 5, 2012

3. What letter is it?

   By Genady, May 17, 2023
   • 2 replies
   • 280 views
   • 
   • Genady
   • May 17, 2023

4. What Number Comes Next?

   By GlassPilot, October 20, 2012
   • 10 replies
   • 4.9k views
   • 
   • HuMoDz
   • November 2, 2012

5. What number?

   By Itoero, January 1, 2019
   • 2 replies
   • 1.2k views
   • 
   • Itoero
   • January 1, 2019

6. What three books would you have taken...

   By Bettina, May 25, 2005
   • 10 replies
   • 4.6k views
   • 
   • quick silver
   • May 26, 2005

7. What time is it? 1 2

   By needimprovement, August 16, 2010
   • 34 replies
   • 8.5k views
   • 
   • apis
   • August 20, 2011

8. what time is it?

   By phillip1882, April 24, 2012
   • 1 reply
   • 1.3k views
   • 
   • questionposter
   • April 25, 2012

9. What two numbers are missing in this series?

   By ElijahCross, October 3, 2013
   • 9 replies
   • 2.3k views
   • 
   • pears
   • November 18, 2013

10. what's next?

    By carol, July 8, 2007
    • 10 replies
    • 2.6k views
    • 
    • Severian
    • July 9, 2007

11. what's the answer?

    By First↔Cause ♀, February 12, 2012
    • 23 replies
    • 4.2k views
    • 
    • Phi for All
    • February 28, 2012

12. What's the digit in the unit's place

    By Sriman Dutta, December 27, 2016
    • 2 replies
    • 1.5k views
    • 
    • Sriman Dutta
    • December 27, 2016

13. What's the next number ?

    By Sriman Dutta, October 4, 2016
    • 7 replies
    • 1.9k views
    • 
    • AshBox
    • December 19, 2016

14. What's the weight of the part?

    By needimprovement, August 5, 2010
    • 9 replies
    • 1.9k views
    • 
    • Guest
    • August 10, 2010

15. What's wrong with this picture?

    By Genady, February 9, 2022
    • 0 replies
    • 644 views
    • 
    • Genady
    • February 9, 2022

16. when?

    By Siderney_Mello_Pops, March 24, 2011
    • 1 reply
    • 1.4k views
    • 
    • TonyMcC
    • March 24, 2011

17. Which came first, the chicken or the egg? 1 2

    By Jalopy, March 2, 2022
    • 27 replies
    • 4.1k views
    • 
    • TheVat
    • April 21

18. Which door should you take? 1 2 3

    By TonyMcC, January 8, 2011
    • 67 replies
    • 16.7k views
    • 
    • rigney
    • January 29, 2012

19. Which game?

    By questionposter, March 30, 2012
    • 3 replies
    • 1.2k views
    • 
    • questionposter
    • April 4, 2012

20. Which has more gravitational pull, the moon or a nebula?

    By md65536, July 23, 2011
    • 5 replies
    • 3.1k views
    • 
    • md65536
    • October 19, 2011

21. Which law of science applies to salads?

    By Genecks, June 26, 2006
    • 2 replies
    • 1.4k views
    • 
    • swansont
    • June 27, 2006

22. Which way is out??

    By Siderney_Mello_Pops, February 14, 2011
    • 4 replies
    • 2.3k views
    • 
    • soundoflight
    • March 10, 2011

23. Who Am I ?

    By boxhead, December 11, 2004
    • 13 replies
    • 3.1k views
    • 
    • Guest
    • December 15, 2004

24. Who am I ?

    By gentleman-farmer, July 21, 2010
    • 5 replies
    • 1.6k views
    • 
    • Genecks
    • July 22, 2010

25. Who am I?

    By dimreepr, July 14, 2018
    • 19 replies
    • 3.1k views
    • 
    • JosefinaHarrison
    • November 5, 2018