Answer:
What surrounds the world, yet dwells within a thimble?
Glittering points that downward thrust. Sparkling spears that never rust.
A red drum which sounds without being touched, and grows silent, when it is touched.
I am the yellow hem of the sea's blue skirt.
I am black when I am clean and white when I am dirty?
Sometimes I am white, sometimes I am dark. Most people love me. What am I?
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?