Teacher: If you had 4 balls in your left pocket and 6 balls in your right pocket, what would you have?
Little Johnny: Really big pockets!
Teacher: How many feet are in a yard?
Little Johnny: It depends on how many people are standing in it.
Little Johnny asked his Grandma how old she was.
Grandma answered, "39 and holding."
Johnny thought about that and then asked, "And how old would you be if you let go?"
Dentist: Little Johnny, you're not brushing your teeth very well. Do you know what comes after decay?
Little Johnny: De 'L'?