Answer:
These are believed to be found at the end of rainbows
They keep secrets locked away. And you pass through them each day. For each one there is a key, They respond to sesame.
One more than a duet.
Men in skirts blow into these.
A tower at the root of all confusion.
Two little holes in the side of a hill. Just as you come to the cherry-red mill.
Easy
Animal
Difficult
Food
Funny
Kids
Logic
What am I?