One for you smart people out there...
You have 9 zero's, in the shape of a box (ignore the dots in between) see below. Take your pencil and using only 4 straight lines (not curved) join all 9 zero's together. You MUST NOT take your pencil of the paper. If you know how to do this, just post I know it to give the others a chance, as this might make a few people irritated trying to do it. lol

0..............0...............0
0..............0...............0
0..............0...............0
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