Playing in the world of the Willow movie.

[Maz]

Originally Posted by Phantasm

Brownies get IQ as a bang skill? That doesn't seem right, esp. with a negative point value.

Ehe, no, sorry. That's the (un)official way to say "IQ but without Will and Per".

So it's to say they get reduced IQ, but not Per or Will.
These two guys are chosen to guide Willow and do NOT seem all that smart. If smarter brownies where available I am guessing they would have been chosen, the quest being for the sake of the world and all that. I know they are the comic relief but I still think its fitting to have them at a general lower IQ level. But they seem brave enough and observant enough.