Teacher: "If I gave you 2 cats and another 2 cats and another 2, how many would you have?"
Johnny: "Seven."
Teacher: "No, listen carefully... If I gave you two cats, and another two cats and another two, how many would you have?"
Johnny: "Seven."
Teacher: "Let me put it to you differently. If I gave you two apples, and another two apples and another two, how many would you have?"
Johnny: "Six."
Teacher: "Good. Now if I gave you two cats, and another two cats and another two, how many would you have?"
Johnny: "Seven!"
Teacher: "Johnny, where in the heck do you get seven from?!"
Johnny: "Because I've already got a freaking cat!"
Link:
http://www.laughfactory.com/jokes/clean-jokes
Lol, they say that the little children tell the truth - except for Pinocchio ...
The careless teacher should have asked, "If I gave you two cats, and another two cats and another two, how many cats would I have given you?"
Lol, yes, T(h)ink, the teacher did not take into account certain circumstances ...
Well, that is rather human!


Poor teachers - lol!
Marianne I did not see that coming, big smile!
Lol, Virginia - this is a paradoskian example; you don't see it coming.
Marianne!!! I have learned a new word from you...here's Wikipedia's rendering...
"A paraprosdokian is a figure of speech in which the latter part of a sentence, phrase, or larger discourse is surprising or unexpected in a way that causes the reader or listener to reframe or reinterpret the first part. It is frequently used for humorous or dramatic effect, sometimes producing an anticlimax. For this reason, it is extremely popular among comedians and satirists."
Wikip even had more examples!
Lol, Virginia, you said that you didn't see this one coming, and that reminded me of "paraprosdokians":
https://list25.com/25-hilarious-paraprosdokian-phrases-youll-never-see-coming/
http://mentalfloss.com/article/65921/11-paraprosdokians-will-make-you-think-twice
https://louisem.com/3951/paraprosdokians-social-media-quotes
http://www.guy-sports.com/months/paraprosdokian.htm
and:
https://en.wiktionary.org/wiki/para-
https://en.wiktionary.org/wiki/%CF%80%CF%81%CE%BF%CF%83%CE%B4%CE%BF%CE%BA%CE%AF%CE%B1