Before posting the results I'm asking for your advice:
I don't really know how to work with the DQ drivers, especially in question 10 (How many laps alltogether):
A: They drove their laps and their driving had influence on other drivers. If one of them crashed into another driver, he would be retired in spite of the disqualifications.
And Atlas F1 (http://www.atlasf1.com/2004/can/laps.html) list their laptimes so the answer should be 1154.
B: Their cars were illegal from the start and so their laps were illegal, so the correct answer is 868 laps.
What do you think?