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  Subject Started by Replies Views Last post
Polygon Area william wu 9 2418 Mar 10th, 2003, 6:26pm
by Icarus
The GHZ Paradox (quantum nonlocality) william wu 0 837 Mar 9th, 2003, 6:27am
by admin
Duck in Pond II James Fingas 2 2991 Mar 7th, 2003, 1:42pm
by fingasj
1000 light bulbs Weasel 1 2865 Mar 1st, 2003, 8:58pm
by Icarus
Zeno's paradox Kozo Morimoto 9 7597 Feb 26th, 2003, 7:15pm
by Icarus
number riddle Viperdude 1 812 Feb 19th, 2003, 7:15pm
by Icarus
Fill in the blanks.... Vincent_469 4 746 Feb 18th, 2003, 6:26pm
by Vincent_469
Falling Ball (some physics required) NickH 7 3843 Feb 13th, 2003, 12:08pm
by aero_guy
Card game (solution) tim 1 1333 Feb 12th, 2003, 12:16pm
by GRAND_ADMRL_THUORN
Ascents in Permutations Johno-G 23 4062 Feb 5th, 2003, 4:16am
by admin
Water Bubbles -- Fiction or Reality? James Fingas 13 3816 Feb 4th, 2003, 7:46pm
by SWF
Dad's Riddle Sarah Lestat 12 2327 Jan 31st, 2003, 5:41am
by admin
Maximal Sums In Optimal Play william wu 6 3179 Jan 31st, 2003, 5:33am
by admin
Walking On A Stretching Rubber Band william wu 18 23645 Jan 24th, 2003, 5:51pm
by Icarus
111,777 Johno-G 24 5264 Jan 21st, 2003, 12:04am
by towr
Happy and Sad Numbers Pietro K.C. 12 9246 Jan 13th, 2003, 5:57am
by wowbagger
I invented a new board game :-) Yossarian 6 1402 Jan 9th, 2003, 12:40pm
by admin
Statistics Lies Ivan 1 3209 Jan 3rd, 2003, 4:21pm
by redPEPPER
New Puzzle: P and S Garzahd 5 1089 Jan 3rd, 2003, 2:55am
by NickH
Three Locks luke's new shoes 7 2895 Dec 23rd, 2002, 5:32am
by ZJ
Circular Jail Cell NickH 2 2964 Dec 18th, 2002, 10:20pm
by Ivan
Finite Math; x^x^x Troy I. 14 2778 Dec 10th, 2002, 7:10pm
by Icarus
Help needed: puzzles/riddles from another site Kozo Morimoto 3 970 Dec 6th, 2002, 3:19pm
by Garzahd
Two-face:  How's this answer?
« Pages 1 2 »
Chronos 25 5517 Dec 6th, 2002, 2:33pm
by eyeh
Hard:  ROTTEN APPLE Drake 5 2530 Nov 30th, 2002, 8:45am
by Pietro
Love Triangle James Fingas 20 1419 Nov 28th, 2002, 9:44am
by fingasj
Marriage Matchings william wu 5 880 Nov 26th, 2002, 8:40pm
by Icarus
Tom's house Moti 3 885 Nov 25th, 2002, 11:12am
by Moti
MOONSTONE S. Owen 2 3200 Nov 13th, 2002, 6:31pm
by luke's new shoes
NEW PROBLEM:  1000 Wires Eric Yeh 15 5686 Nov 13th, 2002, 7:03am
by eyeh
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