Answer:
I start with T end with T and within me is T.
I dance on one feet and knows only one shape. Someone with same name as me is very good with directions
Two bodies have I, though both joined in one. The more I stand still the faster I run. What am I?
I am lighter than the material I am made of. You see parts of me but more of me is hidden underneath.
I have a hundred legs but cannot stand. I have a long neck but no head. I cannot see and I help keep your house neat and tidy.
What do you purposefully put lots of in and on your body, but run away from when you encounter it outside?