15
ADD: Completely incorrect. This answer refers to pocket billiards, and more specifically "8 ball" or "Boston" or "stripes and solids".
In billiards, there are three balls. One of one color, and two of another.
2
In English Billiards there are 3 balls. White, white with spot (or yellow ball) and red.
BILLIARDS, or SNOOKER? Billiards only uses 3 ball's, 2 white (one with a spot on) and 1 red. SNOOKER has 15 reds, and six COLOURED balls. (yellow, green, brown, blue, pink, and black.
There are seven striped balls in billiards.
The are no values to the balls in either pocket billiards or English Billiards.
In true Billiards there is only 1 red ball. In snooker there are 15 reds.
In English Billiards, 1.
In billiards the corner pocket means an opening in the billiards table into which the balls are struck into. There are also side pockets. the idea is to get the balls in to the pockets.
The English Billiards balls are either white or red.
Billiards/pool.
The terms pool and billiards may or may not refer to the same game. Pocket billiards is usually referred to as pool, and covers many different games, the most common being straight pool, 8 ball, and 9 ball. English Billiards is never referred to as pool, and uses only 3 balls. Snooker is never referred to as pool or billiards, but is a form of billiards, and uses special table markings and 22 balls.
Depending upon the game, there are from 7 to 21 colored balls.