A performer asks for certain sums and deduces your landline number with some quick mental arithmetic. How is it done?

All the Latest Game Footage and Images from Numbers Planet: Games and Puzzles This is a collection of more than 25 simple and amusing games about numbers and math. It includes the following games: ...

Roula Khalaf, Editor of the FT, selects her favourite stories in this weekly newsletter.

Physicists are quietly rolling out a new generation of simulation codes that promise to do more than crunch numbers. By ...

Every online bank transfer, private message and Bitcoin transaction rests on the assumption that some math problems are ...

Puzzle 1: You are given nine gold coins that look identical. You are told that one of them is fake, and that this coin weighs ...

333 people finished in under a minute. We created a crossword puzzle just for Californians. 327 people are playing right now. The reMarkable Pro Move is a more portable reMarkable that keeps nearly ...

Matt Korda, the associate director of the Nuclear Information Project at the Federation of American Scientists, assisted USA ...

Seven brainteasers feature in intelligence agency’s 2025 Christmas card, with covers designed by UK school pupils A warning from the spies at GCHQ: a robber is on the loose, intent on stealing ...

According to data, malnutrition deaths have jumped in the United States, especially among those 85 and older. Here’s why the ...

The soft launch landscape looks set to change in 2026. As technology evolves, so too do user acquisition and data collection.

Even Georgia coach Kirby Smart can have his mind read. Watch how Oz the Mentalist pulled off two magic tricks with the UGA ...