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(Moderators: Eigenray, ThudnBlunder, Grimbal, william wu, Icarus, towr, SMQ)
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Crossed Cylinders SWF 4 7985 Oct 29th, 2013, 7:27pm
by rloginunix
5 coins and 5 weighings Altamira_64 23 14359 Oct 20th, 2013, 11:42pm
by jousha22
The Engineer Problem Naumz 5 4601 Oct 2nd, 2006, 5:47pm
by Icarus
Square formation H7 5 7803 Jul 19th, 2007, 2:44am
by towr
airplane riddle benmartorano 3 8879 Oct 11th, 2012, 8:20am
by Altamira_64
3 Enemies snags697 19 6025 Oct 22nd, 2013, 10:52pm
by towr
The Lion and the Lion Tamer Eric Yeh 21 13148 Oct 22nd, 2013, 12:04pm
by Grimbal
Statistics Benny 22 6779 Nov 3rd, 2008, 2:04am
by towr
HARD: Hamming Distance Questions
« Pages 1 2 »
-D- 48 35524 Oct 20th, 2013, 12:58am
by Grimbal
Bachelor's Dilemma
« Pages 1 2 »
tim 30 15316 Oct 16th, 2013, 5:29am
by titan
Particle Time tim 13 5062 Oct 15th, 2013, 9:16pm
by titan
A simple game Jonathan_the_Red 13 8328 Oct 15th, 2013, 2:48pm
by titan
CALENDAR CUBES II Hobbes 21 8369 Oct 15th, 2013, 1:45am
by Grimbal
Upside Down LCD display waka 13 5970 Oct 11th, 2013, 12:47pm
by Grimbal
Alien Experiment Enigami 3 4341 Aug 21st, 2013, 1:42am
by nakli
two pythagorean triples Christine 5 2776 Jul 24th, 2013, 4:23am
by JohanC
Monotone Paths in Graphs william wu 10 8797 Feb 5th, 2013, 4:34am
by rmsgrey
integration MonicaMath 16 8239 Jun 6th, 2010, 4:40pm
by SWF
generalize the prisoners' problem pandasbox 3 2453 Jul 5th, 2013, 5:41am
by rmsgrey
Ping Pong tournament Altamira_64 4 7833 Sep 16th, 2012, 6:09am
by pex
Logicians and stamps Altamira_64 9 6183 Jun 20th, 2013, 9:46am
by Grimbal
A conjecture about Mersenne primes and non-primes Mickey1 1 3334 May 29th, 2013, 1:32pm
by Mickey1
Another variation to the sum / product riddle Altamira_64 1 4089 Feb 2nd, 2013, 6:32am
by SMQ
Albert Einstein Riddle tsitut 1 4564 Feb 21st, 2013, 4:55am
by rmsgrey
Heet seeking missiles jollytall 11 10892 Jun 21st, 2008, 4:15am
by NightBreeze
Chess Game Reconstruction FiBsTeR 20 7924 Jan 25th, 2013, 1:52am
by snozwuncle
Guessing Cards Suit
« Pages 1 2 »
Barukh 39 10489 Jan 10th, 2013, 11:52am
by jollytall
Highway (to) 61 revisited Mickey1 15 6579 Jan 9th, 2013, 7:10pm
by Mickey1
Moved: NBA teams Altamira_64 0 3840 Nov 9th, 2012, 7:11am
by pex
Moved: Combinatorics puzzle zbudde 0 3631 Oct 29th, 2012, 11:44pm
by towr
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