how to deal with flatmates who think you are dumb?

You have to leave from there.I also like calm and quite.

Thanks for the reply.
I'm on the lease for one More year,so leaving is not a option.

Then spend the barest minimum of time with them. Eat out if you can, read at night and/or put headphones on, and stay out of common areas. You can stay out later, too, by doing things like going to a library or a park or the mall (weather and preferences permitting). Or take a night class, at the gym or the Y or elsewhere.

Just, find ways to be apart from these guys and the year will go by and you'll be done with them for good.

Sounds good to me!, I'll do that. Thank you!!

My pleasure. I've had lousy roommates and I know how much that can stink. Just keep telling yourself it's not forever.