Only 1% with an IQ above 150 can solve this math puzzle in 5 seconds. Are you one of those brilliant minds? Test your ...

Waiting for the hake to bite, musing about that ice cube. The post Math Puzzle for December 5, 2025 appeared first on Alameda ...

Flex your math muscles with this weekend’s brain teaser. Play now.

The puzzles are geared towards testing a range of skills that the UK's intelligence agency uses every day to keep the country ...

A simple brain teaser is causing a stir online. The puzzle asks for the total number of people based on men, wives, and ...

The UK's intelligence, security and cyber agency creates a Christmas Challenge puzzle every year and this year marks a decade of challenges.

Large language models such as ChatGPT come with filters to keep certain info from getting out. A new mathematical argument ...

A math puzzle is a type of brain teaser where the reader's critical thinking and problem-solving skills are tested. These challenges have the potential to boost intelligence and improve concentration.

GCHQ’s chief puzzler, known only as Colin, added: "This year's Christmas challenge features seven puzzles designed to test everything from codebreaking and mathematical analysis to lateral thinking ...

Undergraduate students across North America sat down on Saturday to write a grueling six-hour math exam, many of them ...

GCHQ has launched its annual Christmas challenge, featuring a new set of seven brainteasers and Christmas card designs by schoolchildren. This year's challenge marks a decade of GCHQ's festive puzzles ...

We've designed the puzzles so that no one will find them all easy. Some will suit analytical minds, others require creative ...