Rubik's Cube: The World's Best-Selling ToyInvented in 1974 by Hungarian sculptor and professor Erno Rubik, the Rubik's Cube is now said to be the world's best-selling toy. More than 300 million of these colorful, square puzzles have been sold worldwide. The standard Rubik's Cube has 54 square faces—nine on each side—covered by stickers in six solid colors. When the puzzle is solved, each side of the cube is a single solid color. What is the current world record for solving a Rubik's Cube?
