Answer:
I help engines spin and pants stay up
I love to twist and dance. Though wingless, I fly high up into the sky. What am I?
I begin your sentences. What am I?
To you, rude would I never be, though I flag my tongue for all to see. What am I?
I am pronounced as one letter, written with three. I come in blue, black, brown, or grey. Reverse me and I read the same either way. What am I?
When is it bad luck to see a black cat?