Answer:
Crooked as a rainbow, and slick as a plate, Ten thousand horses can't pull it straight.
I move without wings, Between silken string, I leave as you find, My substance behind.
I never was but always will be. No one ever saw me but everyone knows I exist. I give people the motivation to better themselves every day. What am I?
Bold are the first; true are the second; playful are the third; clever are the fourth; forceful are the fifth.
Big as a biscuit, deep as a cup, but even a river can’t fill it up. What is it?
What covers its face with its hands, speaks no language, yet most known what it's saying?