Carl has 16 rubber balls to share with his 2 brothers and 1 sister. If Carl and his brothers and sister each get the same number of rubber balls, how many rubber balls will each of them get

Four

Explanation:

There are 16 rubber balls to be shared.

Carl, his two brothers and a sister make up four people.

Carl, his brothers and his sister are to each get the same number of rubber balls.

This means 16 rubber balls are to be shared equally for four people without bias.

Hence, they will each get 16/4 = 4 rubber balls