I got six, according to them, but I have issues with some of the questions. There's no way that #2 is correct. Capitalization does not equal punctuation, nor are doublequotes two separate quotes. In fact, only I answered #4 using US convention. I eschew l33t-5p33k, so I missed #8. I misunderstood #1; when they mentioned brackets, I thought they wanted us to include brackets -- [] -- braces -- {} -- and parentheses -- (). I also included both quotes and double quotes. And, I'm sorry, capitalization is simply not punctuation, despite what the OED might say. (I've not looked.)