Answer:
You write on me and secrets I can keep in places never seen. I spin like a top. Though stiff as a board, I'm often described like a mop. 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 sit in a corner while traveling around the world. What am I?
I am the kind of ant that's good at math.
The Titanic is still here.
I tell people to be careful when handling boxes.