cleverness vs brightness

cleverness and brightness both are nouns.

Word	Noun	Adjective	Verb	Adverb
cleverness	Yes	No	No	No
brightness	Yes	No	No	No

As nouns, cleverness and brightness are synonyms defined as:

cleverness and brightness: intelligence as manifested in being quick and witty

Other synonyms of cleverness include smartness.

cleverness (noun)	brightness (noun)
the property of being ingenious	the location of a visual perception along a continuum from black to white
intelligence as manifested in being quick and witty	the quality of being luminous; emitting or reflecting light
the power of creative imagination	intelligence as manifested in being quick and witty