Answer:
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?
I can be as thin as a picture frame but my insides have many things you can see.
What type of house weighs the least?
It can be done to buttons and shopping carts. What is it?
What goes up but never comes down?
I build up castles. I tear down mountains. I make some men blind. I help others to see.