Answer:
By Moon or by Sun, I shall be found. Yet I am undone, if there's no light around
What surrounds the world, yet dwells within a thimble?
Runs smoother than any rhyme, loves to fall but cannot climb!
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?
Mobsters judge the quality of a vehicle by the size of this
People take me on walks and I run and have fun. What am I?