My favorite fruit is the pear.
Because if you have two and you eat one, you still have a pear left.
My daughter picked up a piece of fruit and asked, "Is this a pear?"
"No," I replied, "there is only one."
Pre pear yourself for a bad pun.
Dad: Is that a pear?
*Dad points to pear on the kitchen counter.
Child: Yea...
Dad: Then why is there only one?