Answer:
You’ll have me at night and if you remove the first letter I denote the top, such as on a train
In your fire you hear me scream, creaking and whining, yet I am dead before you lay me in your hearth.
I'm a bacteria that causes typhoid What's my name ?
What goes with a car, comes with a car, is no use to a car but a car cannot move without it?
There are millions of me. I am very small but when moving fast I am deadly.
What is so fragile that saying its name breaks it?