Inaccurate

Many of their word comparisons use inaccurate synonyms or antonyms of words, the number problems are predominantly based on finding one possible pattern out of several (and hoping you are fortunate enough to stumble onto theirs sooner than later), and based on familiarity and rote memorization far more than intelligence, If you have a high IQ, the fallacies are quite clear.

Ascendant ;) about Mensa Brain Test