In a world cup match you can have only five substitutes per each game.
there are two refferies in a Basketball game
A Basketball game has four quarters.
If someone is in basketball, they play the game.
Its said that there were about 190 people at the 1st basketball game which was a high school basketball game.
as many as you want but a good number is about Five
there is 4 in an NBA game and 4 in a NCAA basketball game or college basketball.