He is also the only one who appears to have at least average intelligence, if not over.

He looked harmless; common, and of average intelligence, but no more than that.

She absorbed knowledge like a sponge and was of well above average intelligence.

And it doesn't surprise me to learn that I have below average intelligence either.

Most have average or higher intelligence - which is part of the reason so many are not identified.

Ramage asked the man, who seemed to be of above average intelligence.

These things are a puzzle to a person of my average intelligence.

Once it became two children, though one had only average intelligence, and the other was dim-witted.

Between the two of them they make up one person of "less than average intelligence".

Being of below average intelligence and feeling the need to run with the herd.