Answer:
Man's most important invention.
What is it that you must give before you can keep it
I start with “e” end with “e”. I have whole countries inside me. What am I?
They keep secrets locked away. And you pass through them each day. For each one there is a key, They respond to sesame.
A person's greatest asset.
Why did Superman flush the toilet?
Easy
Easy
Animal
Difficult
Food
Funny
Kids
Logic
What am I?