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Puzzles

Cleopatra the Demented

What's on the cards?

The Gobbling Goat

Put the gobbling goat on a diet

The great weights problem

Solution to Puzzle No. 6 world cup medallions

The Great Weights Puzzle

The hint - world cup medallions

Blood, oil and water

Sara Zahedi has won a prestigious prize at the European Congress of Maths. Your future medical diagnoses, and even the welfare of sea life, may depend on her work.
Counting the trees of life

How many possible genetic relationships are there between a collection of different species? The answer is mind-bogglingly large.
There may be more than one of you

The possibility that there might be many parallel worlds has just become a little more likely.
Stuff happens: From finance to fundamental physics

Current physical theories suggest that beautiful symmetries underly the fundamental particles and forces of nature. We describe those symmetries using an analogy from economics, and even rediscover the famous Higgs boson.
Five of Euler's best

Five favourite problems inspired by Leonhard Euler, one of the greatest mathematicians of all time.

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