Answer:
I have a ring but no fingers. I used to stay still all the time but nowadays I follow you around.
Although I am still, in families I run. I continue to live on in a living one. As one continues to draw breath, I will not rust. However, when one stops drawing breath, I will become mere dust. What am I?
By Moon or by Sun I shall be found. Yet I am undone if there's no light around.
Travel a mile and I will change, travel a million and I will end as I started. What am I?
When I point up, it's bright. When I point down, it's dark. What am I?
When someone uses this acronym, you know you've got to pick up the pace