As far as the test questions go, you are not supposed to discuss them. But I can say that the questions were all from the Discover Canada book and there was a wide spectrum of difficulty. Some questions were so easy it made me smile, and some others I had to go back to and really think about..
The interview didn't last more than 4-5 minutes. The officer asked me about who else in my family was in Canada, what their status was. What I did for a living, and since I am a biz owner, she asked about how much taxable income I declare every year. I did have my T4s and T5s etc but she didn't want to see them (I offered). Pretty straight forward stuff..