Mathematical Puzzling
A collection of puzzles and ideas that we find interesting.
Divisibility paths
Oxford Circus to Leicester Square
Multiple guess
Six weeks of seconds
Fleur's driving puzzle - solution
The fourth set - solution
The hindsight probability trap
The melon puzzle
16 counters puzzle - solution (part 2)
The American billion puzzle
The 24 game - solution
Consecutive sums
Birthday candles - solution
16 counters puzzle - solution (part 1)
The interrupted game
Black token white token - solution
Jack Reacher puzzle
Does Grace cheat in tests? - solution
The 24 game
The three coloured balls puzzle - solution
Triangular numbers, triangular words
Flipping fractions - explanation