Do Jewish people consider themselves intellectually superior to Gentiles?

Of course not. We don't make sweeping generalizations about entire groups of people like that. But I'm curious as to the motivation for this question? Is it that you think that's true and you are looking for affirmation? It seems to me that if you were honestly asking this question, you would have directed it at Jewish people i.e., using the first person, instead of using the third person.