Answer:
What is brown and sticky?
I belong to you but others use me more often than you do
I'm sometimes white but most often I'm black. I take you there but never bring you back.
I have cities but no houses I have mountains but no trees I have water but no fish. What am I?
I am slim and tall many find me desirable and appealing they touch me and I give a false good feeling once I shine in splendor but only once and then no more for many I am to die for.
What do you purposefully put lots of in and on your body, but run away from when you encounter it outside?