I also like sometimes to take a test like that, just to see what I’m capable of and how I can solve different puzzles. And I can even call it a kind of rest for me, when I just want to switch focus. An alternative could probably be the mensa practice test free. That one can be considered a way to prep for the real test. And in general, the mensa test is for those whose IQ is high enough. It’s a tough exam.