Little Johnny was sitting in class

Little Johnny was sitting in class not paying attention at all.
His teacher comes up and slaps her hand on his desk and asks him, "You have 3 ducks sitting on a fence. You shoot one and how many are left?"
Little Johnny says, "0 because when you shoot one the other two fly away."
His teacher replies, "well 2 was the answer I was looking for, but I like the way you think."

She goes to walk away, but he grabs her hand and asks her, "three women are eating ice cream. One is sucking her ice cream, one is licking her ice cream, and the other is biting her ice cream. Which one is married."
"The one sucking her ice cream," says his teacher
Little Johnny tells her, "No it's the one wearing a ring, but I like the way you think."