Answer:
I turn around once. What is out will not get in. I turn around again. What is in will not get out.
What is yellow, looks like the moon and has seeds?
It's been around for millions of years, but is never more than a month old. What is it?
Walk on the living, they don’t even mumble, Walk on the dead, they mutter and grumble. What are they?
A man parks his car outside of a hotel and immediately realises he is bankrupt. How did it happen?
I’m grown from darkness but shine with a pale light. Very round I am and always a lady's delight.