Answer:
I am the red tongue of the earth, that buries cities.
You fill it and it empties, A metaphor for plenty, Depending on what half you see, It's either full or empty
It keeps you on the ground and stops things from floating around. What is it?
The more you have of me, the less you see. Who am I?
What goes up and down the stairs without moving?
I am the kind of an ant that's good at math. What am I?
Easy
Animal
Difficult
Food
Funny
Kids
Logic
What am I?