yeah, i fucking hate things like this. i am normally pretty good at actual logic puzzles, i mean, i've been solving them for fun since 6th grade and can do reasonably well in them most times when i'm in the right mood for it.
as Sideways said though, this test seems to be more about how much you think like the author, or a test of how much other, non-logic related knowledge you have. the first question wasn't even a logic puzzle. it was guessing what he could have meant by something. i saw the "pi" reference, but didn't think to use it until i'd read over the entire passage about 50 times looking for some subtle grammatical nuance indicating what it might be.
it was much the same with that other huge one that was posted here a while back. half the shit on it didn't even make sense if you were from another country, because parts of it referenced pop culture. parts of it were also basically just a case of guessing what the person may mean by whatever picture they had put up.