"5 Black Birds" joke

A little boy is in school working on his arithmetic. The teacher
says, "Imagine there are 5 black birds sitting on a fence. You pick
up your BB gun and shoot one. How many blackbirds are left?" The
little boy thinks for a moment and says, "NONE!" The teacher replies,
"None, how do you figure that?" The little boy says, if I shoot one,
all the other birds will fly away scared, leaving none on the fence."
The teacher replies, "Hmm, not exactly, but I do like the way you
think!" The little boy then says, "Teacher, let me ask you a question.
There are 3 women sitting on a park bench eating ice cream cones. One
is licking her cone, another is biting it and the third one is sucking
it. How can you tell which one of the women is married?" The teacher
ponders the question uncomfortably and then finally replies, "Well, I
guess the one sucking her cone." To which the little boy replies,
"Actually, its the one with the wedding ring, but I do like the way
YOU think!!"