Category: Puzzles
Cayley’s Formula – How many trees can you make from n labelled vertices?
NRICH is 25 – Celebrate by playing “Got It!”
Escape from Earth with Professor Dirac and Doctor Pauli (IV)
Escape from Earth with Professor Dirac and Doctor Pauli (III)
Escape from Earth with Professor Dirac and Doctor Pauli (II)
Escape From Earth with Professor Dirac and Doctor Pauli (I)
Envelope Packing Puzzle
Light Bulb Puzzle
