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
I can be swallowed, but I can also swallow you. What am I?
I am the kind of a tree that is carried in your hand. What am I?
I give people a huge fright, but at the end I'm sweet. I normally celebrate at night, when there's less heat. What am I?
I'm tall when I'm young and I'm short when I'm old. What am I?
If it’s information you seek, come and see me. If it’s pairs of letters you need, I have consecutively three. What am I?