Rubik's Cube

An important anniversary of one of the world's most iconic and popular toys is just around the corner. One museum will celebrate its anniversary with a very expensive reproduction that will also make it one of the most expensive toys in the world. Aside from a Ferrari.

The world record for the fastest-solved Rubik's Cube is 5.66 seconds, set last year by Feliks Zemdegs. When you see a speedcuber like Zemdegs do his thing, you realize that he is approaching the puzzle in an entirely different way than you would. That goes double for watching Marcell Endrey, who just set the world record for finishing a Rubik's Cube blindfolded, which is now 28.8 seconds. Watch En

For kids of the '80s, few accomplishments were more meaningful than solving a Rubik's Cube without having to resort to removing the stickers. But for Cube master David Calvo, it's no longer enough to simply line up the colors on each side -- he's actually mastered the art of solving a Rubik's while juggling two more at the same time.

More rise of the machines: This smartphone-powered Lego robot is able to solve a Rubik's Cube in about six seconds. Watch a robot do what few nerds can below.

Forever 21 might think that girls are allergic to algebra, but this young lady proves that she's a math fiend by reciting the first 100 digits of pi. While solving a Rubik's Cube. With 15 books balanced on the top of her head.