Answer:
What runs around the whole yard without moving?
Lots of them make up a word, And lots of words are in them. It's easy when you think about it. A while ago we stamped and mailed them.
A
These are believed to be found at the end of rainbows
Makes apples fall from trees
Dark, feathery, and popular in Baltimore and fantasy books.
Easy
Animal
Difficult
Food
Funny
Kids
Logic
What am I?