What do you find at the back of the fridge?
What grows on the feet of your cousin Midge?
What tickles your nose when you have to sneeze?
What do doctors insert when they work on your knees?
What do frogs mate with when they are in heat?
What do you find when you turn down the sheet?
What goes into your dog and out of your cat?
What grows under logs and smelly door mats?