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?
What has two ends but no beginning?
What do you have in December that you don't have in any other month?
Even if you throw it away, it still comes back.
What was the first man made invention that could see through a wall?
Cycle Cycle Cycle.