Not really.
No, music can not make a person to be dumber. Music helps relax people.
No, It doesnt make you dumber, it is used, incases if you need to cook a meal in a hurry.
Yes, in 2014, titled Dumb and Dumber To
Hopefully they are done with Scary Movie 4 because they are just getting dumber and dumber
It could make you smarter, make you dumber. Almost anything.
Well sometimes they can have these effects... ...
it kills brain cells
Based on your grammar, YES.
No. The suggestion that it does is absurd.
The cast of Dumber and Dumber - 2003 includes: Tommy Vance as Himself - Presenter
Patrick is definitely dumber
Lloyd was dumber.