Answer:
I am a king who's good at measuring stuff.
Everyone has me and no one can lose me. What am I?
When you need me, you must find me. When you find me, you no longer need me. What am I?
What can travel around the world while staying in a corner?
What is black when it's clean and white when it's dirty?
A man goes out in heavy rain with nothing to protect him from it. His hair doesn't get wet. How does he do that?