12) Chinese zodiac animals
11) Ocean’s 11 actors
10) Canadian provinces
9) Rooms in Cluedo/Clue
8) Parts of speech
7) 7 Deadly Sins
6) Noble gases
5) Oceans
4) Fantastic Four members
3) Three Musketeers
2) Countries on the island of Hispaniola
1) ‘The One’ from the Matrix