Brain Teasers and Puzzles

639 topics in this forum

1. A Simple Arithmetic Teaser !

   By Commander, January 22, 2021
   • 17 replies
   • 2.7k views
   • 
   • Commander
   • February 1, 2021

2. item puzzles

   By ancient, May 17, 2022
   • 17 replies
   • 2.6k views
   • 
   • ancient
   • July 10, 2022

3. Moving train

   By Genady, May 22, 2023
   • 17 replies
   • 890 views
   • 
   • Genady
   • May 28, 2023

4. Puzzles

   By Radical Edward, February 18, 2004
   • 16 replies
   • 3.9k views
   • 
   • Guest
   • November 19, 2004

5. Cowboy and his Horse

   By ecoli, March 25, 2005
   • 16 replies
   • 2.9k views
   • 
   • Anarchaus
   • March 29, 2005

6. pub question

   By Guest kremlin, May 16, 2005
   • 16 replies
   • 2.7k views
   • 
   • Karl1986
   • September 15, 2005

7. Trivia

   By Franklin, January 24, 2006
   • 16 replies
   • 3.2k views
   • 
   • hotcommodity
   • March 1, 2006

8. Jon's Message

   By Jadey12, June 17, 2007
   • 16 replies
   • 2.9k views
   • 
   • Pre4edgc
   • September 8, 2007

9. Timeless universe

   By Fred56, November 2, 2007
   • 16 replies
   • 3.3k views
   • 
   • Klaynos
   • February 24, 2008

10. Balance the Balls!

    By Alan McDougall, July 8, 2008
    • 16 replies
    • 4.2k views
    • 
    • Royce
    • May 20, 2009

11. Math Puzzle of the Week

    By Imaginer1, October 22, 2008
    • 16 replies
    • 3.9k views
    • 
    • Pericles
    • July 8, 2009

12. Math Brain Teaser

    By Mashfiq, November 5, 2009
    • 16 replies
    • 3.7k views
    • 
    • doG
    • November 20, 2009

13. Pinocchio Paradox

    By needimprovement, September 14, 2010
    • 16 replies
    • 6k views
    • 
    • Schrödinger's hat
    • May 12, 2011

14. can you read it ?

    By Kowalski, January 22, 2011
    • 16 replies
    • 5.5k views
    • 
    • ian528
    • May 26, 2011

15. How much faster is my car than yours?

    By Divagating the Future, February 26, 2012
    • 16 replies
    • 2.3k views
    • 
    • Spyman
    • March 5, 2012

16. Einstein's riddle

    By space noob, May 15, 2012
    • 16 replies
    • 8.5k views
    • 
    • johnah
    • February 18, 2013

17. LR puzzle

    By staffingby, April 1, 2013
    • 16 replies
    • 7.2k views
    • 
    • md65536
    • May 12, 2013

18. Physics Brainteaser!

    By Mr. Astrophysicist, February 22, 2015
    • 16 replies
    • 3.2k views
    • 
    • GeneralDadmission
    • February 26, 2015

19. May be a Simple Series Puzzle !

    By Commander, August 29, 2015
    • 16 replies
    • 3.2k views
    • 
    • Commander
    • January 28, 2017

20. Prove It

    By Sriman Dutta, August 13, 2016
    • 16 replies
    • 2.4k views
    • 
    • Function
    • September 4, 2016

21. Geometry - no equations needed

    By Genady, August 1, 2023
    • 16 replies
    • 905 views
    • 
    • Genady
    • August 2, 2023

22. Funky Mensa Calendar Puzzle.

    By jdurg, February 8, 2005
    • 15 replies
    • 4.2k views
    • 
    • Dak
    • April 21, 2005

23. Numbers!

    By Ducky Havok, June 10, 2005
    • 15 replies
    • 3.5k views
    • 
    • gnpatterson
    • June 18, 2005

24. What is the next number in this pattern?

    By NPK, January 2, 2006
    • 15 replies
    • 2.3k views
    • 
    • NPK
    • January 15, 2006

25. 4d and 5d rubik's cubes

    By abskebabs, June 12, 2006
    • 15 replies
    • 3.3k views
    • 
    • Ormy
    • September 12, 2006