A magic cube is a three-dimensional array of whole numbers, in which each row, column, and body diagonal (corner to corner, through the center) adds up to the same total. A perfect magic cube is one ...

Solving a Rubik's Cube is an easy way to impress your friends, but you don't need to be a math genius to crack the algorithm. With help from this app spotted by Lifehacker, you don't even need to ...