Answer:
Casper was a friendly one and Demi Moore made a clay pot with one.
What stays in one corner but travels around the world?
You fill it and it empties, A metaphor for plenty, Depending on what half you see, It's either full or empty
What cleans as it gets dirty only to get clean the more you use it?
What fastens two people yet touches only one?
What never gets any wetter no matter how hard it rains?
Easy
Animal
Difficult
Food
Funny
Kids
Logic
What am I?