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Subject |
Started by |
Replies |
Views |
Last post |
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Car parking |
towr |
2 |
4995 |
Jan 31st, 2008, 5:01pm by Eigenray |
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x^2 + 3*y^2 |
Christine |
0 |
2246 |
Sep 6th, 2013, 8:08am by Christine |
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One evil king, two prisoners, 20 trees |
Zaz |
13 |
21425 |
Sep 2nd, 2013, 9:25am by rmsgrey |
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rope around the earth riddle |
chinkygogo |
11 |
14188 |
Aug 18th, 2013, 6:14pm by Fifis |
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three square numbers |
Christine |
2 |
3489 |
Aug 18th, 2013, 8:06am by towr |
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multiples of 13 |
Christine |
1 |
3538 |
Aug 4th, 2013, 7:16am by towr |
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divisibility by 29 |
Christine |
11 |
5040 |
Jul 26th, 2013, 4:29pm by Christine |
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Bridge and river |
Altamira_64 |
1 |
1927 |
Jul 24th, 2013, 9:24pm by jollytall |
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UNEQUAL INTEGERS |
pcbouhid |
3 |
1505 |
Jul 4th, 2013, 11:55am by Christine |
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number of divisors |
Christine |
1 |
2150 |
Jun 4th, 2013, 7:00am by rmsgrey |
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Basketball odds |
Altamira_64 |
4 |
2383 |
Jul 12th, 2013, 9:25pm by jollytall |
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Integer triangle with 120 degrees |
Christine |
2 |
2888 |
Apr 23rd, 2013, 11:13am by Christine |
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log (100*x) = x |
Christine |
2 |
2603 |
Jul 5th, 2013, 9:53pm by SWF |
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Role models in education |
wonderful |
0 |
1016 |
Jul 2nd, 2013, 10:57pm by wonderful |
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number of cube configurations |
sportsdude |
6 |
1064 |
Jun 26th, 2013, 3:44am by rmsgrey |
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how many non overlapping |
tony123 |
9 |
2133 |
Nov 2nd, 2007, 5:55am by towr |
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Powerball Expected Value |
marsh8472 |
4 |
3216 |
May 29th, 2013, 10:36pm by towr |
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Dice rolls |
Altamira_64 |
1 |
1037 |
Jun 1st, 2013, 12:46am by pex |
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Integral |
mathstudent155 |
2 |
2218 |
Feb 20th, 2013, 12:12pm by tsitut |
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Divisible by 42 |
PeterR |
3 |
2737 |
May 29th, 2013, 10:16pm by towr |
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prime triplet |
Christine |
5 |
1392 |
May 29th, 2013, 3:47pm by whizen |
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non-similar triangles |
Christine |
10 |
4743 |
May 25th, 2013, 1:38pm by towr |
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Truth or lie? |
Altamira_64 |
2 |
1373 |
May 20th, 2013, 11:06am by rmsgrey |
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How to Slice a Bagel into Two Linked Halves |
nakli |
4 |
1339 |
May 10th, 2013, 4:10am by towr |
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Digit sum |
Christine |
5 |
2726 |
Mar 7th, 2013, 7:23am by Francesc |
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Squares: sums and differences |
Christine |
5 |
1138 |
Mar 19th, 2013, 10:34am by Christine |
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How many possible connect 4 games are there? |
marsh8472 |
10 |
12573 |
May 10th, 2013, 3:03am by scottlouie |
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Repdigits |
Christine |
1 |
895 |
May 3rd, 2013, 1:36pm by Christine |
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Scant-digit Multiples |
Barukh |
12 |
2273 |
Mar 27th, 2013, 10:02am by towr |
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A Non-overlapping Circle Puzzle |
K Sengupta |
23 |
9578 |
Apr 24th, 2013, 10:10am by Mariko79 |
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