Answer:
I am a king who’s good at measuring stuff. What am I?
Of these things - I have two. One for me - and one for you. And when you ask about the price I simply smile and nod twice.
By Moon or by Sun I shall be found. Yet I am undone if there's no light around.
I can fall off a building and live, but in water I will die. What am I?
What gets whiter the dirtier it gets?
The warmer I am the fresher I am.