Okay, I am kind of skeptical about IQ tests. I think they only measures the speed of a person's reasoning abilities as well as a small portion of knowledge (or just knowledge). I kind of think that any person is capable of solving any problem by just having the main/neccessary knowledge of the problem. For example, in a question like this:
if x = 5 and y = 5. What is the value of x when multiplied by y?
The example above can only be answered if one knows what the word "multiplied" means. As you can see, that actually test your verbal and mathematical knowledge, it doesn't actually measures your intelligence.
Now assuming that one knows what the word "multiplied" means. One should be able to solve the problem, and it would just be a matter of time, in other words it would be a matter of how quick my reasoning abilities operate.
Disclaimer: I am not a philosopher, nor do I have a huge amount of knowledge in the subject. And I really hope I made sense.