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  1. Number Theory (1)
  2. A semiprime proof
  3. Integer puzzle
  4. About Euler's constant (4)...
  5. Find the radius
  6. Probabilistic Group Theory
  7. About Euler's constant (3)...
  8. Size!
  9. About Euler's constant (2)...
  10. Set theory problem
  11. Trigonometric Inequality
  12. Hyperfactorial function
  13. integral , basic ..
  14. Find the number of extremum
  15. About Euler's constant (1)...
  16. Prime-counting function
  17. Not eventually constant!
  18. Challenge #1
  19. Power series for tangent function
  20. A pide
  21. A number puzzle for u
  22. A new Puzzle :)
  23. Geometry
  24. Tough & Beautiful!
  25. An integral with a parameter
  26. Integral
  27. Limit (6)
  28. Compute an integral
  29. n-th derivative of e^y and the partition function
  30. Triangle inside rectangle
  31. Existence of a root
  32. Jacobi identity
  33. more integrals
  34. Rectangles
  35. Stranger loan
  36. A quintic equation!
  37. Strange Loan
  38. Interesting integral
  39. Limit of the quotient of two sequences
  40. yet another integral
  41. another integral
  42. solve the equation
  43. MHF Integral Bee!
  44. Square + Quad
  45. Integral
  46. A nice integral
  47. Inverse and derivative
  48. Convex & bounded above
  49. integral
  50. Logic Puzzle
  51. sum of 8 squares
  52. TA’s Challenge Problem #7
  53. alternating series
  54. TA’s Challenge Problem #6
  55. Limit (5)
  56. Grasshopper
  57. infinite power tower
  58. Quadratic Residues
  59. A functional equation
  60. Limit (4)
  61. A generalized infinite series
  62. TA’s Challenge Problem #5
  63. Large Number
  64. A Novel Bound for Polynomials?
  65. nearest integer function
  66. Crazy integral
  67. A constant function!
  68. An inequality
  69. Where's the roots?
  70. Limit (3)
  71. An infinite series
  72. Find out fallacy(2)
  73. Find out fallacy
  74. Continuous & Periodic
  75. Reals & Integers
  76. Variations on colours and hats
  77. An integer-valued function
  78. Pentagon
  79. Challenging Integral
  80. Tree-Planting Problem
  81. Find the best way to solve this question
  82. Limit Question
  83. Divisibility
  84. Inequalities Question
  85. Set closed under under multiplication
  86. TA’s Challenge Problem #4
  87. An interesting integral
  88. Application of Derivatives
  89. Find the code
  90. Limit (2)
  91. TA’s Challenge Problem #3
  92. Limit (1)
  93. Infinite series (5)
  94. Another interesting integral
  95. TA’s Challenge Problem #2
  96. An interesting indefinite integral
  97. The Triangular Duel
  98. Another question about Zeta function
  99. A question about Riemann Zeta function
  100. Zeta function: A recurrence relation
  101. Infinite series (4)
  102. Infinite series (3)
  103. Infinite series (2)
  104. Infinite series (1)
  105. Integral
  106. Techniques of integration (6)
  107. Sequence Puzzle
  108. Techniques of integration (5)
  109. Techniques of integration (4)
  110. fun series
  111. An upper bound for a series
  112. Techniques of integration (3)
  113. How many eggs?
  114. How long is the rope?
  115. Innocent looking 1st order DE
  116. Proof that 1 = 2
  117. Evaluate the integral
  118. infinite series
  119. Integral
  120. Generalized binomial coefficients
  121. Sequence
  122. Techniques of integration (2)
  123. Techniques of integration (1)
  124. Interesting Integral
  125. Find the minimum distance (Calculus II)
  126. Simplify this function
  127. Four numbers equal 24
  128. A differential equation
  129. Induction: an inequality
  130. Algebraic integers
  131. # Some special polynomials!
  132. # Polynomials with no zero
  133. An identity
  134. Calculus: solving an equation
  135. A series limit
  136. Please read this before posting in this subforum.
  137. Binomial coefficiens: an identity
  138. Pre-algebra: inequality
  139. Calculus I: (multi) infinite sums
  140. Calculus I: derivative
  141. The Missing Intercept
  142. Calculus I: integral
  143. Sequences and primes
  144. An inequality
  145. Calculus II: double integral
  146. Calculus I: infinite series
  147. 2 questions 6 digit number and neighbour squares
  148. A few cool ones here
  149. Integral limit
  150. Brainy 3
  151. lcm and sum
  152. Brainy 2
  153. Brainy
  154. a dice game
  155. 12 bastions on a wall of a fortress
  156. Islander problem
  157. Find the missing number
  158. The old "Four numbers equal 24" problem
  159. Algebra problem
  160. what is the next number?
  161. What road to take? Knights and Knaves puzzle.
  162. Olympic Rings Mathematical Problem
  163. Fractions Games that you know of?
  164. Two Trains
  165. is it puzzle or complex problem?!
  166. proof of -1 = +1
  167. Math puzzle
  168. Game theory
  169. Walk 1 mi South, 1 mi West, 1 mi North, end up where you started
  170. Anyone up to a matrix challenge???
  171. A Question - Concentration Required
  172. big and small widgets
  173. Confusing Math Puzzle
  174. False proof 1=2
  175. Another oldie
  176. Let see how good are you in solving problems!!!
  177. Help with my castle
  178. lattice pie - another puzzle stuck on
  179. figure of eight- need help
  180. please help with problem
  181. Need help for this Polynomial
  182. Bonus problems need it done by TOMMOROW!!
  183. Volume of sphere with hole in it
  184. come back with puzzle
  185. Bank Robbery
  186. Colouring-In
  187. Einstein Riddle Variant
  188. The Magic Gnomes
  189. Random Number Generator
  190. profit at Roulette?
  191. How to count?
  192. Pseudo-Geometric Series
  193. An oldie
  194. Sudoku as a mathematics teaching aid
  195. Volume Puzzle
  196. Need Help on this Quiz
  197. Dice
  198. How Many?
  199. Dice Problem
  200. Birthdays
  201. Family Gathering
  202. Complete the chessboard
  203. Memories of Disney Land
  204. RPG Battle
  205. Circles
  206. Adam and Eve
  207. Calculations of a Stalker
  208. I Find With My Little Mind
  209. Russian Roulette Based Puzzle
  210. Online Game I made
  211. Math Tricks of the Trade
  212. Puzzle I made up
  213. [Enigma] Small problems
  214. Break the following code!!
  215. Code Problem
  216. Help the poor math grads !!!!
  217. mindblowing puzzle !!
  218. 4x4 Grid Puzzle
  219. The Missing dollar.
  220. Magic Hexagons
  221. Clocks - Time
  222. Problems on time
  223. solve this
  224. Problems solving puzzle!
  225. good math books
  226. simple problem??
  227. Angle from 3d Vectors
  228. A puzzle, for me anyway
  229. Prime Magic Square
  230. Card Trick!
  231. Practical math problem...sort of a puzzle
  232. Does this problem have a solution?
  233. Sticks!
  234. Beauty Contest Puzzle
  235. Solution behind a card trick?
  236. Nim Variation
  237. Game Theory - Heuristic for single-player puzzle
  238. e times pi...hmmm
  239. Matrix Puzzle
  240. find the missing number
  241. Rule for multiplying by 17
  242. eyes
  243. Find the missing value
  244. Help with this puzzle
  245. Fibonacci numbers
  246. The Monty Hall Paradox
  247. Find the speed...
  248. How many squares? quick quick quick!
  249. Need Math Puzzle Help
  250. Time wasting Line Connection Problem