Answer:
What is the heart of many risks, has a heart, but is not a living being?
What type of paper can you neither read nor write on?
Five hundred begins it, five hundred ends it. Five in the middle is seen. First of all figures, the first of all letters. Take up their stations between. Join all together, and then you will bring before you the name of an eminent king.
Lighter than what I am made of, More of me is hidden Than is seen.
What relies on columns but isn't a house, and asks for help but can't speak itself?
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?