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The coloured hat exam Three students have been put in detention by their evil maths teacher, Mr Chalk.
Do five suffice?
Crack a code with Enigma
Greater than sudoku!
Solving sudokus - colouring by numbers
Graph theory helps answer Sudoku questions
Have a go at this
-themed Sudoku variation.
Sudoku around the clock
What is a black hole – physically?
Small, dark, and very hard to see. This and far more indepth answers to every question you ever wanted to...
Where would the world be without mathematics?
A new competition invites young people aged 11 to 19 to explore the history of maths for a chance to win cash...
Playing with numbers
Here's a game: pick a positive natural number and if yours is the smallest number no one else has picked, you...
Ramanujan surprises again
A fascinating discovery sheds new light on the work of the Indian mathematician Srinivasa Ramanujan.
Information about information
What is information and how does it shape our reality?
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