Answer:
What falls down but is never injured?
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?
The thinkers usually hold this body part
Before Google, we actually had to physically look things up in this building full of knowledge.
What is something you will never see again?
How do you know if a sniper likes you?