Well if they were the same questions youve seen before, than it wouldnt be a proper iq test. When you took the SAT, did you take practice tests beforehand? Were they anything like the actual SAT? Probably not. The point of these kinds of tests is that you are unable to practice for them because they are not trying to find your ability to study, they are testings your ability to understand and implement new patterns of data as they are presented to you.

Also, don't be upset if you test low. I agree with almost all arguments against IQ tests, such as how there are different kinds of intelligence and different kinds of tests that are weighted to different kinds of intelligence or how some tests are bias towards certain mindsets and worldviews. It's almost a useless stat, but its broad enough for most large corporation to use them in determining who they hire (which is what sparked this entire conversation).