122 spaces in a Chinese checker board
1973: Britain Enters the Common Market.
290 Bones in a Child's Body
2 covers on a book
ten commandments
21 Consonants in the Alphabet
4 Cardinal Points of the Compass
10 Centuries in a Millenium
7 C in the W = 7 Continents in the World.
This is a Ditloid. The answer is 0 (zero) Sides on a Circle.
100 counties in North Carolina
100 Runs in a Century
3 Primary Colours - Blue, Red, and Yellow