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Joffan
  • Member for 9 years, 8 months
  • Last seen more than a month ago
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1,599
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23
answers
1
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About

Interested in mathematical counting puzzles and many others ${\overset\infty \smile}$

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43
Score
6
Posts
25
Posts %
29
Score
5
Posts
21
Posts %
24
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2
Posts
8
Posts %
23
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2
Posts
8
Posts %
17
Score
2
Posts
8
Posts %
15
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2
Posts
8
Posts %
Top posts
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answer
19
A rhopalic sentence of at-least 5 words, beginning with as long word as possible
Jun 5, 2016
answer
17
Longest word with adjacent letters on a keyboard
Apr 1, 2015
answer
14
180 degree rotation matchstick equality
Jan 25, 2015
answer
13
Ant walking on a number line
Mar 24, 2015
answer
13
Wife can't figure out husband's secret account password
Apr 1, 2015
answer
8
Pay Close Attention - A puzzle for all those who can think outside the box
Mar 27, 2022
answer
7
How many triangles are in the picture?
Jan 13, 2015
answer
6
How old is the ship of Theseus?
Mar 26, 2015
answer
5
Two Bowls of Alphabet Soup
Mar 31, 2015
answer
4
Building a 2 mile runway on a 1x1 mile island
Mar 23, 2015
Top network posts
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81
Prove that the equation $x^2-y^2 = 2002$ has no integer solution
55
How many subsets of set $\{1,2,\ldots,10\}$ contain at least one odd integer?
53
Every point of a grid is colored in blue, red or green. How to prove there is a monochromatic rectangle?
53
Where does the constant increase by 2 of differences between integer square values come from?
50
Is there a combinatorial interpretation of the triangular numbers?