I believe IQ's are just for gauging your ability to solve problems.
I'm pretty sure the main purpose about IQ tests is to be able to tell other people what your score was. They might also serve the secondary purpose of getting you into Mensa, which has the related goal of letting you tell people you're in Mensa.
Obviously!
Ugh, I'm feeling out of sorts. I only benched 350 today (it's a cardio day, so I go light on the weights and mostly run 30 miles) and yet I feel a little sore anyway.
(I bet this one gets a lot of takers here.)