 Most of us take in around 50 to 85 grand a year, but a girl can dream. Cooper Lawrence, CBS News. It's a milestone year for the world's best-selling toy. Jim Krasula explains. It's been giving us joy and aggravation for 50 years, either defeat or a satisfaction of accomplishment. The Rubik's Cube was introduced to the world in 1974 by Erno Rubik, a Hungarian architect, designer, sculptor, and retired professor. Problem-solving, it's a very basic...