My rings tell my age, but I never wear jewelry. What am I?

I seem to change shape through the month, but I stay round. What am I?

You can feel me, hear me, and see what I move, but you cannot hold me. What am I?

We appear when the sun goes away, but we are not light switches. What are we?

What blanket can cover a whole town but weighs almost nothing?

I paint the sky with many colors but never use a brush. What am I?

You cannot see me, but you can feel me push your kite. What am I?

I have a head and a foot but no body. I am made of rock. What am I?

I light up the night but I do not need a plug. What am I?