Little Johnny was in his math lesson one day when his teacher asked him a question to see if he was paying attention.
“If I gave you 40, “she began, “and you gave 10 to Mary, 10 to Suzan and 10 to Wendy, what would you have?”
Johnny thought about this and then answered, “An orgy?”
This joke is included in the Black Book of Jokes. You can order it from here.