Answer:
What flies around all day but never goes anywhere?
It is by nature, soft as silk; A puffy cloud, white as milk; Snow tops this tropical crop; The dirtiest part of a mop
They're up near the sky, on something very tall. Sometimes they die, only then do they fall.
Round as a button, deep as a well. If you want me to talk, you must first pull my tail.
Iron roof, glass walls, burns and burns and never falls.
What never gets any wetter no matter how hard it rains?
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?