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Duplex difference Sudoku
Mystery Christmas theft
Losing a pound
What would you do for a dollar?
Chocolate egg or chocolate bunny? Dark chocolate or white?
Become the life and soul of the party with our
Maths, metronomes and fireflies
It's one of the most beautiful sights in nature: fireflies illuminating the night with their synchronised...
The art gallery problem
Sometimes a piece of maths can be so neat and elegant, it makes you want to shout "eureka!" even if you haven...
Play to win with Nim
In the game of Nim one player always has a winning strategy — it depends on an unusual way of adding numbers.
Scared of swine flu? Avoid children!
New analysis of the 2009 swine flu pandemic in the US shows that the pandemic wave was surprisingly slow, and...
Blink and you'll miss it: The free kick in football (part I)
Free kicks will deliver much of the drama in the football world cup this summer. But how should strikers...
The philosophy of cosmology
Can philosophy help explain our Universe?
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