Brain Teasers and Puzzles

653 topics in this forum

1. A Balance, and a Fake Ball among the Good Ones

   By Mental Dynamist, May 17, 2019
   • 1 reply
   • 1.6k views
   • 
   • peterwlocke
   • May 17, 2019

2. Can you find it on the calendar?

   By Sirjon, March 22, 2019
   • 3 replies
   • 2.4k views
   • 
   • peterwlocke
   • March 29, 2019

3. Can You Find the Number? 1 2 3

   By Umurbaba, February 14, 2019
   • 62 replies
   • 11.3k views
   • 
   • Commander
   • October 15, 2019

4. How to solve this?

   By GeorgeScott, February 10, 2019
   • 1 reply
   • 2.1k views
   • 
   • bluedot
   • March 29, 2020

5. Shortest Path ?

   By Commander, February 7, 2019
   • 3 replies
   • 2.8k views
   • 
   • Commander
   • July 14, 2019

6. Try this one !

   By Commander, February 5, 2019
   • 5 replies
   • 2k views
   • 
   • Commander
   • February 7, 2019

7. Wtf is this puzzle?!?!?!?!

   By Branden, January 25, 2019
   • 3 replies
   • 1.8k views
   • 
   • CharonY
   • January 25, 2019

8. riddle

   By Itoero, January 4, 2019
   • 5 replies
   • 1.7k views
   • 
   • Itoero
   • January 5, 2019

9. What number?

   By Itoero, January 1, 2019
   • 2 replies
   • 1.4k views
   • 
   • Itoero
   • January 1, 2019

10. The Race

    By Endy0816, December 31, 2018
    • 20 replies
    • 3.2k views
    • 
    • MigL
    • January 10, 2019

11. The switches

    By QuantumT, December 29, 2018
    • 8 replies
    • 1.8k views
    • 
    • QuantumT
    • December 30, 2018

12. Difficult bio question

    By Itoero, December 1, 2018
    • 8 replies
    • 2.6k views
    • 
    • John Cuthber
    • June 2, 2019

13. Boltzmann Brains Vs. Maxwell's Demon

    By Conjurer, November 9, 2018
    • 3 replies
    • 1.8k views
    • 
    • Keith Palmer
    • November 18, 2018

14. A quiz with questions from quantum to cosmos

    By Strange, October 14, 2018
    • 12 replies
    • 3.1k views
    • 
    • koti
    • November 2, 2018

15. A Simple Brain Teaser !

    By Commander, September 4, 2018
    • 3 replies
    • 1.8k views
    • 
    • JosefinaHarrison
    • November 5, 2018

16. Can you solve this Riddle?

    By Marijn, August 30, 2018
    • 13 replies
    • 2.6k views
    • 
    • JosefinaHarrison
    • November 5, 2018

17. Can you solve this puzzle?

    By oanacristina, July 27, 2018
    • 4 replies
    • 2.5k views
    • 
    • sci-man
    • December 6, 2018

18. Who am I?

    By dimreepr, July 14, 2018
    • 19 replies
    • 3.8k views
    • 
    • JosefinaHarrison
    • November 5, 2018

19. 13 BRAIN TEASERS TO MAKE YOU THINK HARD AND TO BOOST YOUR BRAIN POWER

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

20. very fast drone

    By Itoero, March 24, 2018
    • 4 replies
    • 1.4k views
    • 
    • Itoero
    • March 24, 2018

21. round peg and square hole

    By Strange, March 11, 2018
    • 0 replies
    • 1.5k views
    • 
    • Strange
    • March 11, 2018

22. Horse-sense 1 2

    By Tub, February 19, 2018
    • 26 replies
    • 6k views
    • 
    • Hypsibius
    • March 22, 2018

23. Two multiple choice questions

    By bradley55, January 23, 2018
    • 11 replies
    • 5.1k views
    • 
    • J.C.MacSwell
    • July 4, 2018

24. 2 Riddles

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

25. Riddle

    By DanTrentfield, January 17, 2018
    • 1 reply
    • 1.6k views
    • 
    • alchimie
    • January 24, 2018