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wu :: forums    riddles    hard (Moderators: ThudnBlunder, SMQ, Grimbal, william wu, towr, Eigenray, Icarus) Pages: 1 ... 11 12 13 14 15  ...  27 Start new topic    Subject Started by Replies Views Last post Product and Sum problem kaykay 1 1652 Dec 3rd, 2006, 3:52am by ThudnBlunder 100 hunter riddle gigglesnort 2 1967 Nov 30th, 2006, 6:16pm by N/A Criminal Cupbearers loophole MorbidJoe 7 2211 Nov 28th, 2006, 5:22pm by rmsgrey 3 Men and a Hotel Room macdaddy 9 6416 Nov 28th, 2006, 4:42pm by Icarus PICARD'S THEOREM PROOF THAT 0 = 1 jw666 1 1024 Nov 25th, 2006, 7:43am by Icarus Naming Sons Whiskey Tango Foxtrot 13 937 Nov 14th, 2006, 12:49pm by Grimbal Reversish Card Shuffling william wu 10 843 Nov 9th, 2006, 2:17pm by Sameer Doomed to be zeros « Pages 1 2 » irrational 42 2752 Nov 2nd, 2006, 11:15pm by Miles HARD: Calendar Cubes I ddavis 15 2805 Oct 26th, 2006, 12:22pm by TheNumberScott selecting the increment set inexorable 14 996 Oct 20th, 2006, 9:46am by towr Simultaneous Hat Color Guessing II Barukh 8 1216 Oct 11th, 2006, 4:31am by towr The Number Pyramid Naumz 7 6908 Oct 4th, 2006, 6:48pm by SWF Inimical Dictators Barukh 1 2406 Sep 23rd, 2006, 7:01am by Whiskey Tango Foxtrot Curves Paradox? « Pages 1 2 » Barukh 27 2338 Sep 22nd, 2006, 11:27pm by Barukh ALWAYS A PERFECT SQUARE pcbouhid 12 1560 Sep 14th, 2006, 5:52pm by lijko Two-Face Escape william wu 6 6266 Sep 14th, 2006, 11:24am by Whiskey Tango Foxtrot Square Formation Kyubinin 3 1077 Sep 13th, 2006, 1:52pm by towr Dud bullets astaroth 9 1153 Sep 1st, 2006, 8:27am by rmsgrey Minimum races problem Naumz 9 1139 Aug 30th, 2006, 6:34pm by Icarus Daughters' Ages hakejam 7 2340 Aug 12th, 2006, 12:14am by casual_kumar CIRCULAR JAIL CELL casual_kumar 4 1751 Aug 11th, 2006, 5:00am by SMQ 100 PRISONERS AND A LIGHT BULB casual_kumar 5 1176 Aug 9th, 2006, 7:30pm by capricafox CALENDAR CUBES casual_kumar 4 1579 Aug 8th, 2006, 4:06am by casual_kumar Neighboring Lights Aravis 4 1327 Aug 4th, 2006, 9:27am by Aravis Topological Rings « Pages 1 2 » william wu 30 14711 Aug 1st, 2006, 10:06pm by tangent number puzzle (driving me mental) qob2003 0 2313 Jul 23rd, 2006, 6:05pm by qob2003 Where Is Jack's mom going KrIcE_msc 1 1262 Jul 23rd, 2006, 1:04am by Sjoerd Job Postmus 1000 Wires Barukh 8 1797 Jul 20th, 2006, 10:08pm by BNC Shoes flash puzzle jsuh103 6 863 Jul 20th, 2006, 9:29am by jsuh103 combinatorics insane problem grish 13 932 Jul 14th, 2006, 6:16am by Grimbal Pages: 1 ... 11 12 13 14 15  ...  27 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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