I had a friend who liked to tell that he had an IQ of 92, and since the average is 90, it means that he has a higher intelligence than the average, and was very proud of it.
Now I can easily recognize this subtle line: under-average intelligence is when you don’t really know what the average is, don’t read the test cap (and generally the small font in any documents), don’t google in case of doubts, and in principle never doubt your correctness.