Answer:
I take off my clothes when you put on your clothes. I put on my clothes when you take off your clothes
I moan I groan I chase after you. I never seem to rest. Timeβs up for you.
I build up castles. I tear down mountains. I make some men blind, but I help others to see. What am I?
Whoever makes it, tells it not. Whoever takes it, knows it not. Whoever knows it, wants it not. What am I?
I'm written with two letters, said with one and seen with two. What am I?
I am your mother's brother's only brother in law. Who am I?