Answer:
They keep secrets locked away. And you pass through them each day. For each one there is a key, They respond to sesame.
What gets bigger the more you take away from it?
What Can Fly Without Wings
This heavy and ancient suit was not worn with a tie, but was always worn in battle.
What starts with a T ends with a T and is full of T?
I am the fountain from which no one can drink. For many I am considered a necessary link. Like gold to all I am sought for, but my continued death brings wealth for all to want more.