Answer:
What has to be broken before you can use 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?
You row in one while you float.
What can go up but never come down?
It weighs next to nothing but no one can hold it for long. What is it?
A first job for many kids, this could be described as "Media Distribution Management.