The compelling quality of the Cube was such that two brand new medical conditions became rife among the more serious addicts, known as the Cubist's thumb and Rubik' s wrist:

What is the easiest color to solve on a Rubik's Cube? "Black. Simply remove all the little colored stickers on the cube, and each side of the cube will now be the original color of the plastic underneath - black. According to the instructions, this means the puzzle is solved"- Steve Rubenstein

It can cause couple problems Frau Schmidt of Dusseldorf in Germany, sued her husband for divorce in 1981 citing the Cube as correspondent. She complained: 'Gundar no longer speaks to me and when he comes to bed he is too exhausted from playing with his Cube to even give me a cuddle'

It can cause football game delay! A football game in Connecticut was delayed when one player, Bob Blake, failed to take the field. He was found in the locker room playing with the Cube

It can help to explain politics! At the Edinburgh Conference of European leaders in 1992, John Major, the British Premier, used RUBIK's Cube to explain to his TV audience the virtually insoluble complexities of the Maastricht Treaty

It help cube addicts kick the habit Cubaholics Anonymous'a voluntary organization to help Cube addicts kick the habit was founded in 1980 by Augustus Judd, a self-confessed Cubomaniac.

Source:
http://www.rubiks.com/