How Much?

Riddle: There is 10 birds on a branch, a man shot 5 of them. How many were left?

Answer: Zero, because when birds see someone coming or hear something they fly away.

Source: https://www.riddles.com/2879

There is 10 birds on a branch, a man shot 5 of them. How many were left? — How much? by Riddler 2842 v1.

Riddle: There is 10 birds on a branch, a man shot 5 of them. How many were left? Answer: Zero, because when birds see someone coming or hear something they fly away. — by Riddler 2842 v2.