Answer:
The line a runner strives to reach
I am the red tongue of the earth, that buries cities.
If there are three cups of sugar and you take one away, how many do you have?
A person's greatest asset.
I'm the source of all emotion, but I'm caged in a white prison.
What did the piece of wood say when he saw the screwdriver and screws approaching?
Easy
Animal
Difficult
Food
Funny
Kids
Logic
What am I?