The point is online IQ-test are bullshit. Most are just feel good test that make money with giving overly high scores and then offering a detailled report for payment. The real test is if you are clever enough to not fall for it. IQOUT is different and mostly done for research reasons but even they only use a small aspect of IQ-tests and are thus not a valid test(which they admit). A real IQ-test has to be done with a certified psychologists and under controlled conditions or else it goes into the trash. I never done one but I guess I'm in the 115-125 range because I got a STEM degree but also know many people that are a lot smarter than I am. But even then in my experience in the real world work ethic and reliability beats raw IQ most of the time.
As I said, in elementary school we took a very similar test like the one you linked. But we had 45 minutes and there were a lot more tasks to solve (think it was 60). Organized by psychologists of course, but we weren't graded by any known scale. Results were in form of number of correctly solved tasks. I was 2nd best in generation, having scored 57 just like another girl from my class. In high school we did one of those language based tests after school in the late evening. Wasn't too shabby but completely failed memory part (no wonder, I was half sleeping by that time).
Imho, IQ tests are waste of time. If someone wants to prove himself, better work on something awesome than wasting time doing silly tests. Being intelligent is just one smaller part of being successful, rest is hard work. If you're lazy person it doesn't matter how intelligent you are, you are going to fail.