Answer:
The more I appear The less you see. So riddle me this: What could I be?
Where can you find roads without cars, forests without trees and cities without houses?
What starts with an "e" but only has a single letter in it?
What goes up when the rain comes down?
Man's most important invention.
Which popular cheese is made backwards?
Easy
Animal
Difficult
Food
Funny
Kids
Logic
What am I?