Puzzles

Links for Mathematics and Puzzles

I like to solve puzzles especially generic solutions to puzzles.

1. Nick's mathematical puzzles
2. Number and word puzzles
3. Gurmeet Singh Manku's Delightful puzzles
4.          puzzle-three-not-gates-from-two-not-gates
5.          puzzle-duplicate-integer
6. Maths Challenge.net  really good!
7. Bradley University's  Problem of the week
8. nrich mathematics
9. Cycle detection is the algorithmic problem of finding a cycle in a sequence of iterated function values
10. Cut the knot's Proofs in Mathematics
11. Berkeley WWU's Riddles
12. Podval's  Problems and puzzles
13. Wolfram Mathworld  Crossed Ladder theorem
14. Pagal guy Puzzles
15. The ultimate puzzle site  complex category: ladder
16. Mathematical problems  escalator, 
17. Mathematics website
18. Math central
19. Tehran unier ece courses
20. Pratik poddars blog
21. Number recreations by Syamsundarguptha
22. Tutorvista  puzzles
23. IBM's ponder this challenge
24. Fifty Challenging Problems In Probability With Solutions
25. Chinese Reminder Theorem
26. Probability-With-Solutions
27. 250 problems in elementary number theory by Sierpiński, Wacław
28. Published in 1970, American Elsevier Pub. Co. (New York)
29. Fun and challenging math puzzles  (refers to my docs)
30. My collection of simple puzzles ( refers to my docs)
31. COGA
32. Silicon Graphic's Tom Davis Homepage

Need generic solutions for

1. Four in a row, kwin4, connect four:
2. match sticks forming squares:
3. Finding counter feit coin using Weigh:
4. prime numbers:
5. sudoku:
6. Puzzle 15 1
7. gcd: LCM:
8. printing permutations using given elements.
9. permutations and combinations
10. Lights out 1

Books:
Intelligent investor

http://en.wikipedia.org/wiki/Category:Logic_puzzles 

http://www.calpoly.edu/~mcarlton/riddles.html 

http://brainden.com/best-puzzles.htm 
Need generic solution for 1,2,5,10   (answ 17) puzzle