Answer:
I shift around though always slowly. I never move more than a few inches at a time. A large movement by me can kill many people. I am huge yet unseen by humans.
Deep, deep, do they go. Spreading out as they go. Never needing any air. They are sometimes as fine as hair.
What color can you eat?
My first half means container. Not a lot of people understand my language. What am I?
What word when read from left to right is a ruler, but when read from right to left is a servant?
What age most travelers have?
What am I?
Animal
Difficult
Easy
Food
Funny
Kids
Logic