Answer:
What has many keys but cannot open a single lock or door?
The distance from the top of your head to the floor standing up straight.
What eight letter word has "kst" in middle, in the beginning and at the end?
It carries paper of the most important sort but also plastic, I'm glad to report. What is 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?
Sometimes I am white, sometimes I am dark. Most people love me. What am I?