Question

I can travel at nearly 100 miles per hour, but never leave the room. You can cover me up, but that doesn’t slow me down. You will not know if I come only once or again and again and again. What am I?

Answer 1

Answer:

sneezing

Explanation:

I say this because of the last sentence, No matter how hard you try to go against it, it still comes out. You still end up sneezing.