Answer:
Runs smoother than any rhyme, loves to fall but cannot climb.
What measures out time. Until in time all is smashed to it?
What comes once in a minute, twice in a moment, but never in a thousand years?
When Iām metal or wood, I help you get home. When Iām flesh and Iām blood, In the darkness I roam.
I am always in front of you, but you will never see me. What am I?
People take me on walks and I run and have fun. What am I?