Answer:
who do you think you know but sometimes you don't
I have rivers without water. Forests without trees. Mountains without rocks. Towns without houses.
Walk on the living, they don't even mumble. Walk on the dead, they mutter and grumble.
They make no sense at all, In them you either fly or fall. They make you do it all. Their need is biologic, but they are most illogic. They are not real but still can be achieved, If they are just believed
What has three ways out and just one way in?
What covers its face with its hands, speaks no language, yet most known what it's saying?
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?