How big is the bird?

A deceptive brain teaser about profit sharing.

This puzzle is apparently used in job interviews — would you pass?

Number the dots so that each line of three adds up to 22.

Be the first to mark the corners of a square to win this game!

Here's one of our favourite strategy games.

Stretch your mind with this mess-free egg puzzle.

A logic teaser in honour of George Boole.

Exploring the five different notions of average.

Making a biased coin fair.

In how many ways can you make it up the stairs?

Making a very special number out of primes.

Want facts and want them fast? Our Maths in a minute series explores key mathematical concepts in just a few words.

A new machine learning framework provides doctors with a reliable tool to help diagnose Alzheimer's disease early.

What do we know about monkeypox, what do we not know, and what efforts are going into modelling it?

The COVID-19 emergency resulted in some amazing mathematical collaborations.

Here's a simple game at which a human can out-fox even the cleverest algorithm.

The INI is celebrating its 30th birthday. What is it and what is it do for maths and mathematicians?