Answer:
I run smoother than any rhyme I love to fall but cannot climb.
I am wood that is neither hard straight or crooked
I work when I play and play when I work. What am I?
I belong to everyone. Sometimes make you happy sometimes make you sad. I will never end until the day you do.
Fatherless and Motherless, born without sin. Roared when it entered the world, And never spoke again.
No matter how little or how much you use me, you change me every month.
What am I?
Animal
Difficult
Easy
Food
Funny
Kids
Logic