Answer:
Consuming food would be pretty tough without these chompers
What is taken before you can get it?
What has been around for millions of years but is never more than a month old?
Lots of them make up a word, And lots of words are in them. It's easy when you think about it. A while ago we stamped and mailed them.
What building has the most stories?
People take me on walks and I run and have fun. What am I?
Easy
Animal
Difficult
Food
Funny
Kids
Logic
What am I?