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Subject |
Started by |
Replies |
Views |
Last post |
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Car parking |
towr |
2 |
4980 |
Jan 31st, 2008, 5:01pm
by Eigenray |
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x^2 + 3*y^2 |
Christine |
0 |
2234 |
Sep 6th, 2013, 8:08am
by Christine |
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One evil king, two prisoners, 20 trees |
Zaz |
13 |
21264 |
Sep 2nd, 2013, 9:25am
by rmsgrey |
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rope around the earth riddle |
chinkygogo |
11 |
14108 |
Aug 18th, 2013, 6:14pm
by Fifis |
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three square numbers |
Christine |
2 |
3476 |
Aug 18th, 2013, 8:06am
by towr |
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multiples of 13 |
Christine |
1 |
3527 |
Aug 4th, 2013, 7:16am
by towr |
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divisibility by 29 |
Christine |
11 |
5030 |
Jul 26th, 2013, 4:29pm
by Christine |
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Bridge and river |
Altamira_64 |
1 |
1915 |
Jul 24th, 2013, 9:24pm
by jollytall |
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UNEQUAL INTEGERS |
pcbouhid |
3 |
1496 |
Jul 4th, 2013, 11:55am
by Christine |
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number of divisors |
Christine |
1 |
2135 |
Jun 4th, 2013, 7:00am
by rmsgrey |
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Basketball odds |
Altamira_64 |
4 |
2372 |
Jul 12th, 2013, 9:25pm
by jollytall |
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Integer triangle with 120 degrees |
Christine |
2 |
2867 |
Apr 23rd, 2013, 11:13am
by Christine |
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log (100*x) = x |
Christine |
2 |
2578 |
Jul 5th, 2013, 9:53pm
by SWF |
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Role models in education |
wonderful |
0 |
1007 |
Jul 2nd, 2013, 10:57pm
by wonderful |
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number of cube configurations |
sportsdude |
6 |
1051 |
Jun 26th, 2013, 3:44am
by rmsgrey |
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how many non overlapping |
tony123 |
9 |
2123 |
Nov 2nd, 2007, 5:55am
by towr |
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Powerball Expected Value |
marsh8472 |
4 |
3203 |
May 29th, 2013, 10:36pm
by towr |
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Dice rolls |
Altamira_64 |
1 |
1033 |
Jun 1st, 2013, 12:46am
by pex |
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Integral |
mathstudent155 |
2 |
2213 |
Feb 20th, 2013, 12:12pm
by tsitut |
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Divisible by 42 |
PeterR |
3 |
2722 |
May 29th, 2013, 10:16pm
by towr |
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prime triplet |
Christine |
5 |
1377 |
May 29th, 2013, 3:47pm
by whizen |
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non-similar triangles |
Christine |
10 |
4726 |
May 25th, 2013, 1:38pm
by towr |
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Truth or lie? |
Altamira_64 |
2 |
1364 |
May 20th, 2013, 11:06am
by rmsgrey |
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How to Slice a Bagel into Two Linked Halves |
nakli |
4 |
1336 |
May 10th, 2013, 4:10am
by towr |
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Digit sum |
Christine |
5 |
2718 |
Mar 7th, 2013, 7:23am
by Francesc |
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Squares: sums and differences |
Christine |
5 |
1128 |
Mar 19th, 2013, 10:34am
by Christine |
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How many possible connect 4 games are there? |
marsh8472 |
10 |
12524 |
May 10th, 2013, 3:03am
by scottlouie |
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Repdigits |
Christine |
1 |
879 |
May 3rd, 2013, 1:36pm
by Christine |
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Scant-digit Multiples |
Barukh |
12 |
2232 |
Mar 27th, 2013, 10:02am
by towr |
 |
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A Non-overlapping Circle Puzzle |
K Sengupta |
23 |
9549 |
Apr 24th, 2013, 10:10am
by Mariko79 |
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