Crows are among the most intelligent animals on Earth, capable of planning ahead, solving complex puzzles, recognizing human ...

Get out your timer and number two pencil to see if your arithmetic skills from grade school are still intact.

Earlier this year, while putting together a video about the world’s fastest solvers of the Rubik’s Cube, I decided to devote some time to learning to solve the classic puzzle myself. Tyson Mao, a ...