Answer:
Casper was a friendly one and Demi Moore made a clay pot with one.
I occur twice in eternity. And I'm always within sight.
What runs around the whole yard without moving?
What has a foot but no leg?
There's one in every deck of cards and in a famous movie
How did the farmer find his wife?
Easy
Animal
Difficult
Food
Funny
Kids
Logic
What am I?