Answer:
I can run but not walk. Wherever I go, thought follows close behind. What am I?
What tastes better than it smells?
I am bought by the yard but worn by the foot. What am I?
What goes through a door but never goes in and never comes out?
If a man carries my burden they will get crushed to death. Though not rich I leave silver in my track.
What do you purposefully put lots of in and on your body, but run away from when you encounter it outside?