Answer:
Face with a tree, skin like the sea. A great beast I am. Yet vermin frightens me.
What can be measured but not seen?
As light as a feather, but you can’t hold it for ten minutes.
What measures out time until in time all is smashed to it?
I am the red tongue of the earth, that buries cities.
I have two eyes in the front and a lot of eyes on my tail
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?