Today's Google Doodle marks the 40th anniversary of the Rubik's Cube: the toy and/or puzzle that has rapidly infuriated and then eternally haunted almost person to have walked this fair Earth since ...

The Rubik's Cube is a three-dimensional puzzle in which each side composed of six different colors is divided into 9 squares of 3x3, and it is so popular that the world championships are held. ' Rubik ...