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(Moderators: towr, Icarus, SMQ, Grimbal, Eigenray, ThudnBlunder, william wu)
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  Subject Started by Replies Views Last post
PPT with a common hypotenuse Christine 0 373 Nov 8th, 2014, 11:38am
by Christine
10-adic numbers Icarus 19 7486 Oct 8th, 2014, 10:31am
by PiotrGrochowski
Hacking an answering machine II dudiobugtron 12 3159 Sep 23rd, 2014, 11:14am
by wakiza33
Connect Four karotto 5 1218 Sep 23rd, 2014, 10:16am
by towr
Kaggle: Africa Soil Property Prediction Challenge william wu 0 1898 Aug 28th, 2014, 12:53pm
by william wu
Two envelopes problem - a variation
« Pages 1 2 »
Altamira_64 26 9750 Aug 25th, 2014, 6:06pm
by dudiobugtron
Polar Bear riddle (plz do not take any help) erica 1 2909 Aug 20th, 2014, 1:10am
by movie4fun
Optimal Fence for Farmer Riddle k2xl 9 1710 Aug 14th, 2014, 9:03am
by Grimbal
Bimagic Square Reconstruction Barukh 2 1443 Aug 10th, 2014, 5:14pm
by dudiobugtron
The non-negative integers wdcefv 4 3012 Jul 29th, 2014, 7:28am
by rmsgrey
Strings of 9s
« Pages 1 2 »
James Fingas 33 7704 May 12th, 2014, 3:14pm
by Dmitriy
Gun with infinite bullets foo 18 8154 May 2nd, 2014, 7:29am
by Grimbal
three-way pistol duel
« Pages 1 2 3 4 5 »
klbarrus 108 55303 Mar 27th, 2014, 6:56pm
by roady
mentally disordered criminals antkor 5 3455 Mar 7th, 2014, 3:43am
by antkor
boxes on europallet riddler358 1 2405 Feb 26th, 2014, 6:00am
by riddler358
Weighings - A sack of rice Altamira_64 8 8469 Feb 25th, 2014, 3:58am
by antkor
Egg Dropping
« Pages 1 2 3 »
Trevor Squires 72 28881 Jan 21st, 2014, 11:01am
by rloginunix
Who can solve this? 2 Eggs 100 Floors Puzzle erica 1 6611 Jan 17th, 2014, 5:04am
by towr
find the password!!! antkor 3 2963 Jan 13th, 2014, 5:00am
by antkor
Moved: The grandfather and the golden coins antkor 0 2691 Jan 10th, 2014, 12:07am
by antkor
13 pirates klbarrus 15 12476 Dec 17th, 2013, 7:46am
by rmsgrey
Polynomial squaring ladders Christine 6 3899 Dec 7th, 2013, 12:31pm
by Christine
integer grid antkor 3 3363 Dec 1st, 2013, 6:53am
by antkor
How fast is Santa flying? Grimbal 22 5758 Nov 6th, 2013, 4:55am
by Grimbal
Crossed Cylinders SWF 4 7329 Oct 29th, 2013, 7:27pm
by rloginunix
5 coins and 5 weighings Altamira_64 23 13453 Oct 20th, 2013, 11:42pm
by jousha22
The Engineer Problem Naumz 5 4158 Oct 2nd, 2006, 5:47pm
by Icarus
Square formation H7 5 7346 Jul 19th, 2007, 2:44am
by towr
airplane riddle benmartorano 3 8589 Oct 11th, 2012, 8:20am
by Altamira_64
3 Enemies snags697 19 5298 Oct 22nd, 2013, 10:52pm
by towr
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