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wu :: forums    riddles    medium (Moderators: ThudnBlunder, SMQ, Eigenray, william wu, towr, Grimbal, Icarus) Pages: 1 ... 22 23 24 25 26  ...  61 Start new topic    Subject Started by Replies Views Last post Sum The Odd Powers, Get Real Triplets K Sengupta 1 335 Aug 5th, 2007, 3:34am by Eigenray solve 5 tony123 6 704 Aug 4th, 2007, 7:25pm by Michael Dagg Maximum number of 'levels' in a graph towr 5 504 Aug 2nd, 2007, 3:28pm by towr primes that differ by 1 gkwal 7 845 Aug 1st, 2007, 6:51pm by Eigenray Delete A Digit, Get Power Of 2? K Sengupta 2 356 Jul 31st, 2007, 4:24am by Eigenray 1967 And A Digital Rearrangement Puzzle K Sengupta 2 356 Jul 28th, 2007, 6:05am by jollytall Take One Polynomial, Get  Integer Coefficients? K Sengupta 3 358 Jul 27th, 2007, 8:40am by K Sengupta Divide The Expressions, Get Integers K Sengupta 1 275 Jul 26th, 2007, 3:18pm by Eigenray Divide Two Sets Of  Quadratic, Get Integers K Sengupta 1 258 Jul 26th, 2007, 2:41pm by Eigenray Take 1000 Odd Digits, Get Number K Sengupta 10 465 Jul 26th, 2007, 8:22am by towr Consider The Minimum, Get 98 Zeroes K Sengupta 3 278 Jul 24th, 2007, 4:22pm by SMQ no of path ... nehal.bandi 5 369 Jul 24th, 2007, 4:14am by jollytall Sum The Exponents, Get Perfect Power? K Sengupta 6 365 Jul 24th, 2007, 1:17am by K Sengupta prime tony123 2 253 Jul 23rd, 2007, 3:21pm by Eigenray River Crossing (III) ThudnBlunder 3 547 Jul 22nd, 2007, 5:29am by FiBsTeR Round-robin Tournament ThudnBlunder 3 339 Jul 21st, 2007, 7:19pm by ThudnBlunder prove tony123 7 541 Jul 21st, 2007, 10:08am by K Sengupta Centred Hexagonal Numbers ThudnBlunder 2 274 Jul 20th, 2007, 11:27am by FiBsTeR Game removing objects from an n x n grid jollytall 6 366 Jul 20th, 2007, 7:33am by jollytall Two rectangles that fit inside the third gkwal 2 301 Jul 19th, 2007, 3:11am by gkwal one mile straight line with 'not enough' tools gkwal 4 440 Jul 18th, 2007, 1:05pm by Eigenray find the dominant poles configurations gkwal 13 490 Jul 18th, 2007, 8:44am by rmsgrey first four digits of n^1,000,000 gkwal 6 486 Jul 18th, 2007, 4:36am by ThudnBlunder number 40....09 not a perfect square gkwal 3 530 Jul 18th, 2007, 2:07am by Barukh 444445-digit number and not power of 2! gkwal 5 693 Jul 18th, 2007, 1:56am by Eigenray Find the limiting pattern gkwal 1 314 Jul 18th, 2007, 1:30am by Eigenray rectangle with rational side gkwal 2 385 Jul 17th, 2007, 5:30pm by FiBsTeR can pennies equal nickels? gkwal 2 310 Jul 17th, 2007, 9:42am by rmsgrey square tile - either at center or next to boundary gkwal 1 232 Jul 17th, 2007, 9:32am by rmsgrey find remainder of the sum when divided by 81 gkwal 1 274 Jul 17th, 2007, 7:24am by SMQ Pages: 1 ... 22 23 24 25 26  ...  61 Start new topic  Normal Topic Hot Topic (More than 15 Replies) Very Hot Topic (More than 25 Replies) Locked Topic Sticky Topic Sticky Locked Topic Forum Jump: ----------------------------- riddles -----------------------------  - easy => medium   - hard   - what am i   - what happened   - microsoft   - cs   - putnam exam (pure math)   - suggestions, help, and FAQ   - general problem-solving / chatting / whatever ----------------------------- general -----------------------------  - guestbook   - truth   - complex analysis   - wanted   - psychology   - chinese

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