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.

Weird and wonderful things can happen when you set a ball in motion on a billiard table — and the theory of mathematical billiards has recently seen a breakthrough.

Was vaccinating vulnerable people first a good choice? Hindsight allows us to assess this question.

A game you're almost certain to lose...

What are the challenges of communicating from the frontiers of mathematical research, and why should we be doing it?

Celebrate Pi Day with the stars of our podcast, Maths on the move!