IQ can be a bit unhelpful... it samples a few (somewhat arbitrary) skills that our society believes make a person "intelligent". And it neglects some important aspects like the ability to make things (my dad can make sophisticated machines and structures... but is crap at verbal reasoning), emotional intelligence and artistic intelligence. If a person can produce beautiful music but can't do a simple word recall test, does that make them unintelligent? No. It means they have unevenly distributed skills and deficits. Some people, like savants do brilliantly on IQ tests but can't manage to do daily things on their own. And what about people with disorders like William's syndrome where they have excellent ability to read emotions in the eyes, but struggle with other things... I'd consider that a form of intelligence too.
I took a psycho-educational assessment recently, which examine key cognitive functions... and I found I was in the 99th percentile for some things and 2nd percentile for another. Right, so I'm a genius and retarded. fantastic.
If you averaged out those scores I'd be in the average to above average range... But in reality that doesn't tell me much... it's much more useful to look at what my strengths are so I can choose an occupation that caters to my abilities, and identify what I struggle with so I can work on those things.