When I was at school I tested 137 in the IQ test. I generally dismissed it but I have since done a few personality tests and found them to be very accurate, others have also reliably predicted my personality type, so I must be very easy to read. That got me thinking that there may be something useful to gain from understanding a persons IQ.
When I did the test it was also very clear where I scored high and where I scored low. In fact there were two areas: I did not concentrate on a few of the questions very well, so misread them and I was hopeless at questions that relied on a memory of words and phrases.
Anyway I have done two test recently one was 135 and the other 140. So the school test of 137 was a pretty good mean!