Elon Musk solved an “unsolvable” math problem after a Harvard professor called him “rich but dumb.” A Harvard Professor Mocked Elon Musk as 'Rich But Dumb'—Then Musk Solved an 'Unsolveable' Math ...

Puzzles are a great way to train your brain, and the more you complete, the easier they seem to get as you become used to solving them. They're also fun to challenge yourself with family and friends.

Shinichi Mochizuki may have solved a 27-year-old problem, but nobody can prove his proof. Getty Images The math world was shaken to its foundation in 2012 when Shinichi Mochizuki released a 500-page ...

For nearly 60 years, the “moving sofa problem,” a long-standing mathematical puzzle, remained unsolved. Last year, a Korean ...