Answer:
I have wheels and flies yet I am not an aircraft.
My full powers come when my makers are dead. I await a heavy hat to put on my head. What am I?
The 8 of us go forth and back to protect our king from a foes attack
One simple click, one simple flash. A piece of memory, for years I'll last. What am I?
I am two-faced but bear only one. I have no legs but travel widely. Men spill much blood over me. Kings leave their imprint on me. What am I?
Give it food and it will live, give it water and it will die.