Answer:
I am a king who's good at measuring stuff.
In Paris but not in France the thinnest of its siblings.
No matter how much rain gets on me, I won't get any wetter. What am I?
Upon your lonely journey I accompany you, whether you travel through endless mountains or seas of blue. Wherever you go, I keep your place. Lost you're not, when I'm embraced. What am I?
I am easy to waste and unstoppable
What do you purposefully put lots of in and on your body, but run away from when you encounter it outside?