Anyone else struggled with the Drone pilot test?

[FarangFB]

It does feel embarrassing, but I've failed this CAAT Drone pilot test already 3 times and I have no idea why.

 

It gives you 40 questions (most pointless and/or unclear) about information and rules in 5 pdf files. The thing is many of these questions are poorly formulated and there are several cases in which more than one answer looks correct. 

 

I must point out that I have always done well with regular tests, let alone "open book" tests which should be a walk in the park, but this particular one looks like a money grab for agencies. I can't believe I'm getting only 26-29 questions correct in my attempts (need 30).

 

Is there a catch I'm missing? I do remember when I did my driver's license exam, they had the answers online and some of them you actually had to answer pick the WRONG answer because that's what the automated verification system had as the correct one.