This guy’s thinking outside the box. Florian Kastenmeier, of Germany, now holds the Guinness World Record for assembling the largest collection of rotating puzzles in the world — a whopping 1,519. The ...

The red numbers on the digital clock speed by, fingers move with a rhythmic and automatic precision, and the blocks of color click into place. That’s the scene at Stanford University’s Dinkelspiel ...

If you’ve ever had trouble solving a Rubik’s Cube, a good piece of advice is to break it down into steps. It’s worth a shot: That advice is from the man who invented it. “Problem solving is a very ...