A red head goes for a drive in the country and she has to stop as there is a farmer who is moving his sheep from one pasture to another across the road. She rolls down the window and says to the farmer, If I can tell you the exact number of sheep that you have, can I keep one?

The farmer figuring that a city girl would never be able to agreed.

The red head guesses the number and is 100% correct. I mean not off by one sheep.

The farmer is an honest man and tells her that she did guess the right number.

She gets out of her car, selects her animal and puts it in the car. Just before she drives away, the farmer asked her a question. If I can tell you the real color of your hair can I have my dog back?