Specifically, the AI was able to make progress on a complex problem called the Andrews–Curtis conjecture, which has stumped ...

An old calculator uses a seven-segment display, in which numerals are represented by different patterns of vertical and horizontal line segments. But the device is faulty and no longer shows any ...

Brainteasers aren't puzzles to play with; they're a mental exercise that tests your thinking, honing your concentration and ...

Puzzle games are perfect for those who like to get their brain working, whether it's dealing with tiles or exploring a world filled with different problems to solve. One of the best places to look ...

Today’s tricky optical illusion challenges users to find the number 28 hidden among identical 29s and 92s. This brain teaser tests attention to detail and cognitive skills. Can you spot it in under 10 ...