Sylvia: I’ve just heard a good riddle that I think you’ll like Carole.
Carole: Well, I’ll be the judge of that Sylvia but, go ahead, let’s hear it.
Sylvia: What is the most difficult river on which to get a boat?
Carole: Hmm. What is the answer?
Sylvia: The River Arno in Italy, because there Arno boats there!