A buddy of mine had an interview and was asked some horrible interview question. He asked me about it afterward, but I wasn't any help. This has been bugging me all ...

Dealing with a problem here that probably has a clever solution which is not coming to me: I have an m x n grid. This grid contains some circles. I would like to find a set of squares that covers the ...

Earlier today I set you the following puzzle: Illustrated below is a quarter-circle, containing two semicircles of smaller circles. Prove that the red segment has the same area as the blue. Solution ...