I Saw Three Ships
3 Stacks (Chimneys) on a Steam Ship
I Saw 3 Ships
3 rivers in York
4 S's in Assassin
one sock in a shoe
3 Angles in a Triangle
3 Colours In The Flag
3 Point Basket
12 seconds on the buzzer
19 a song by Paul Hardcastle
64 Squares on a Draughts Board
This is a Ditloid. The answer is 0 (zero) Sides on a Circle.