Answer:
I run smoother than any rhyme I love to fall but cannot climb.
I am needed for most animals and hardcover books
I have keys but no locks. I have space but no room. You can enter but canβt go outside. What am I?
I move very slowly at an imperceptible rate although I take my time I am never late. I accompany life and survive past demise I am viewed with esteem in many women's eyes. What am I?
I am owned by every man, though my length differs. Their wives use me after getting married. What am I?
It flows out of the soil, It burns you if it boils, And holds us in its coils, More valuable than gold, As black as it is old.