Answer:
He has married many women, but has never been married. Who is he?
It regulates our daily movements, but it feels no interest in our lives. It directs us when to come and go, but does not care if we pay attention. What is it?
We are five little objects of an everyday sort. You will find us all in a tennis court.
Take one out and scratch my head I am now black but once was red.
What can be measured but not seen?
When is it bad luck to see a black cat?