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Puzzles

The Great Weights Puzzle

The great weights problem

The hint - world cup medallions

Monochromatic cows

Solution - Monochromatic cows

Can you collect the whole set?

Solution to Puzzle No. 5 - complex multiplication

Puzzle No. 6 - world cup medallions

Maths in a minute

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

Phantom jams

How to unjam traffic.
Mysterious 6174

Start with your favourite four-digit number, follow these simple steps, and you'll never guess what happens next!
Maths in a minute: The d'Hondt method

How does the voting system for the European Parliament elections work?
No maths for Europe

How should the seats in the European Parliament be allocated?
Maths in a minute: The Sydney Opera House

The mathematical puzzle behind the iconic structure.

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