teacher asks billy if there where four birds on a wall and you shot one how many would you have left ???
billy replies, none miss.
teacher replies wrong billy you would have three left, how did you get to there being none left ?
billy replies, cause the others would have flown away.
teacher replies, sorry billy but the answer is three, but i like the way you think.
billy says to teacher i have a question for you miss if there was three ladies each with an ice'cream cone, one licking it, one biting it, and one sucking it, which one is married ???
teacher looks at billy and answers nervously the one sucking it.
billy replies, wrong miss it would be the one with the wedding ring, but i like the way you think.