Answer:
I hold two people together but touch only one. What am I?
Tuesday, Sam and Peter went to a restaurant. After eating lunch, they paid the bill. Sam and Peter did not pay. Who did?
I go in dry and come out wet. The longer I stay in, the stronger my surroundings get. What am I?
Lighter than what I am made of, more of me is hidden than is seen. What am I?
Ten men's strength, ten men's length. Ten men can't break me, yet a young boy walks off with me. What am I?
No matter how little or how much you use me, you change me every month.