Johnny was in class when his teacher asks

Johnny was in class when his teacher asks:

-Johnny, there are five birds on a tree. You shoot one, how many are left.

-None, miss. The others will fly away!

-The right answer is four, but i like the way you think.

Johnny goes quiet, and then raises his hand.

-Yes?

-Miss, there are three ladies eating ice lollies. One is sucking it, one is licking it and one is biting it. Which one is the married one?

The teacher goes red, starts to sweat and nervously says:

-The one that's licking it?

Johnny smiles.

_No, miss. The one with the wedding ring. But I like the way you think...