Answer:
I'm light as a feather, yet the strongest man can't hold me for more than 5 minutes.
What dress does everyone have, but no one wears?
A device for finding furniture in the dark.
Two bodies have I, though both joined in one. The more still I stand, the quicker I run.
What travels from house to house and is sometimes narrow and sometimes wide but always stays outside?
When is it bad luck to see a black cat?