The Rubik's Cube was at its prime in the 1980s, among Care Bears and big hair. In fact, more than 100 million of these puzzles were sold in that decade. But while many 80s fads went the way of the ...

Few things reveal the limits of someone’s problem-solving skills faster than a Rubik’s Cube, the multicolored, three-dimensional puzzle that has befuddled so many since the 1970s. Though the cube has ...