Not really clean...
So little Johnny the terror is in school. The young, pretty female teacher asks the class: "If there are three birds on the telephone post and you shoot one, how many are left?"
Little Johnny raises his hand immediately (as he always does) and starts making noise "Ohh, ohh, I know, ...ohh ohh."
Teacher looks desperately for anyone else to call on, but being math, no other hands are raised...so, teacher thinks "This is an easy one, he can't be too bad this time..." and calls on him. "So Johnny, what is the answer?"
Little Johnny replies "Zero."
Teacher says, "Come on Johnny, this is easy, three birds on the pole and you shoot one, how many are left?"
Little Johnny says,"Teacher, it is none!"
Teacher says "Now Johnny, how can that be, three less two is...?"
And little Johnny says "It has to be zero"
So teacher thinks and says, "Well, Johnny, how can three less two be zero?"
And little Johnny retorts, "If you shoot at those birds and they will all be gone in no time from the noise! The answer is zero."
Teacher thinks a second and says "Well, the answer is two, but I see your point... I like the way you think." Teacher thinks the subject is closed, but oh no...
Little Johnny says "Hey teacher, if three ladies are sitting at a bus stop eating ice cream cones, and the first lady is just nibbling at the cone, and the second lady is licking it slowly up and down and up and down, and the third lady has the whole ice cream end in her mouth at once pulling and pushing it in and out, which lady is married?"
Teacher immediately turns three shades of red, and stammers out "Well, Johnny, I never...I mean, ...well I don't know,... "
And Little Johnny says, " Come on teacher, this is easy, three ladies eating ice cream like this..." and he acts out each lady eating the ice cream.
So teacher, wanting to end it, says "Oh ok, the last lady."
To which little Johnny replies "No, it is the one with wedding ring...but I like the way you think..."