# Math Challenge Problems Forum

Math Challenge Problem Forum: For challenging math problems (that you can solve yourself)

• Replies: 0
• Views: 1,377
Apr 15th 2014, 04:32 PM
1. ### Clocks - Time

• Replies: 2
• Views: 1,471
Jun 11th 2008, 12:55 AM
2. ### Magic Hexagons

• Replies: 1
• Views: 2,024
Jun 10th 2008, 03:44 AM
3. ### solve this

• Replies: 2
• Views: 1,017
May 19th 2008, 03:55 AM
4. ### Problems solving puzzle!

• Replies: 6
• Views: 936
May 10th 2008, 02:02 PM
5. ### good math books

• Replies: 1
• Views: 1,005
May 9th 2008, 11:17 PM
6. ### Sticks!

• Replies: 2
• Views: 1,531
May 3rd 2008, 09:24 AM
7. ### Angle from 3d Vectors

• Replies: 1
• Views: 955
May 1st 2008, 06:49 AM
8. ### simple problem??

• Replies: 3
• Views: 1,015
Apr 28th 2008, 08:46 AM
9. ### A puzzle, for me anyway

• Replies: 0
• Views: 966
Apr 24th 2008, 11:02 PM
10. ### Prime Magic Square

• Replies: 2
• Views: 1,188
Apr 24th 2008, 06:28 AM
11. ### Card Trick!

• Replies: 2
• Views: 1,235
Apr 19th 2008, 07:27 PM
12. ### Solution behind a card trick?

• Replies: 4
• Views: 3,538
Apr 16th 2008, 08:53 PM
13. ### Practical math problem...sort of a puzzle

• Replies: 0
• Views: 1,038
Apr 15th 2008, 03:27 PM
14. ### Does this problem have a solution?

• Replies: 0
• Views: 1,011
Apr 12th 2008, 04:22 PM
15. ### Nim Variation

• Replies: 2
• Views: 1,077
Apr 9th 2008, 08:22 AM
16. ### Beauty Contest Puzzle

• Replies: 0
• Views: 1,157
Apr 2nd 2008, 10:39 AM
17. ### Game Theory - Heuristic for single-player puzzle

• Replies: 0
• Views: 1,080
Mar 16th 2008, 01:25 PM
18. ### e times pi...hmmm

• Replies: 3
• Views: 985
Mar 3rd 2008, 05:23 AM
19. ### Matrix Puzzle

• Replies: 3
• Views: 2,149
Mar 2nd 2008, 06:47 AM
20. ### Rule for multiplying by 17

• Replies: 6
• Views: 661
Feb 29th 2008, 10:59 AM
21. ### find the missing number

• Replies: 1
• Views: 1,578
Feb 27th 2008, 08:43 PM
22. ### Problem 45

• Replies: 3
• Views: 2,076
Feb 24th 2008, 12:51 PM
23. ### Problem 44

• Replies: 17
• Views: 3,450
Feb 10th 2008, 07:04 PM
24. ### eyes

• Replies: 13
• Views: 1,241
Feb 7th 2008, 10:44 PM
25. ### [SOLVED] Help with this puzzle

• Replies: 8
• Views: 1,254
Jan 28th 2008, 08:53 AM
26. ### (r - 2)^2 + (r - 4)^2 = r^2?

• Replies: 11
• Views: 1,314
Jan 22nd 2008, 10:11 PM
27. ### Interesting equality

• Replies: 13
• Views: 1,714
Jan 4th 2008, 05:57 AM
28. ### Problem 29

• Replies: 8
• Views: 1,911
Dec 29th 2007, 04:06 AM

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