Answer:
A hole in a pole, though I fill a hole in white. I'm used more by the day, and less by the night.
Crooked as a rainbow, and slick as a plate, Ten thousand horses can't pull it straight.
I climb higher when hot, But beware my rage, I’ll kill with a breath, If I can escape my cage
Break it and it is better, immediately set and harder to break again.
What can touch someone once and last them a life time?
What is so fragile that saying its name breaks it?