Answer:
Crooked as a rainbow and slick as a plate, ten thousand horses can't pull me straight. What am I?
Two in a whole and four in a pair. Six in a trio you see. Eight's a quartet but what you must get is the name that fits just one of me.
I may only be given but never bought. Sinners seek me but saints do not. (one word).
If a man carried my burden, he would break his back. I am not big but leave silver in my tracks. What am I?
I'm not alive and yet I grow. Just put me next to where it glows. A favorite in summertime best with friends when combined
Brings the sky a lot closer.