I can reliably hit 100 WPM on those typing tests, although not with the best accuracy. My 'high score,' when I was really practicing, was 120 or so. It helps that I'm a digital native. I was taught typing in primary school and had computer access as a child.
WPM tests aren't the truest measure of practical typing skills, however. In practical contexts you're not focusing only on typing, but on typing and something else at the same time (e.g. thinking of what to write, or how to write it; taking in information to write down, etc.). There can also be other factors at play, e.g. distractions. So whereas my maximum WPM is high, it's nothing more than ordinary in a practical context (by comparsion to my generation, at least, which suffers no shortage of quick typers).