Some toys never go out of fashion. Celebrating its 50th anniversary this year, Rubik’s continues to be the most popular puzzle cube brand in the world, with around 500 million sold, according to Yahoo ...

Feliks Zemdegs solved his 5×5 cube at Melbourne Cube Day in 44.837 seconds. And the crowd went not at all wild. The 5×5 Rubik’s cube—or Professor’s cube—has over 282 trevigintillion (10^72) ...