Mathematics often feels straightforward, yet some results challenge the way people instinctively think about numbers. Certain paradoxes and probability problems produce answers that seem impossible at ...

Time travel has been the staple science fiction books and movies for many years. Most who have read or watched content focusing on time travel knows about the paradox issue. Perhaps the best example ...

Humans are usually pretty good at recognising when they get things wrong, but artificial intelligence systems are not. According to a new study, AI generally suffers from inherent limitations due to a ...

Time travel is deterministic and locally free, a paper says—resolving an age-old paradox. This follows research observing that the present is not changed by a time-traveling qubit. It’s still not very ...

It seems like a simple question: How many parts can you divide a line into? The troublesome answer was square at the root of two of Europe's... Far From 'Infinitesimal': A Mathematical Paradox's Role ...

Editor’s Note: Published in 1957, this article comes from Martin Gardner’s legendary Scientific American column Mathematical Games. Read more in our special digital issue, Fun and Games. A paradox is ...

Have you played the puzzle game Tangram? I remember, as a child, being fascinated by how just seven simple wooden triangles and other shapes could offer endless entertainment. Unlike LEGO, the Tangram ...