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 is something you can give away as many times you want without ever losing it?
Controlled by your hands and feet. It would be nothing without a street. What is it?
Four kings of whom I am one lord. Often on deck but never on board. Though I have a large heart, I am always seen at war. During which I always wear a suit, but never a suit of armor. Who or what am I?
Very helpful if you intend to go gently down a river.
I am a room that has a roof but no walls. What am I?