Regarding your first question, Q12,which is a CQB question, there are two explanations for lift, one uses Bernoulli and pressure distribution to justify the lift produced, the other shows that an airfoil deflects air downwards and the reaction to that downwards force is what we perceive as lift. Both explanations have their plus and minus points.
I can't really comment on the rest of your correspondence without seeing the questions.
[Edited to say 'Doh! I've just realised that it was all one question'. The explanations of the other incorrect answers below are correct, though.]
Last edited by Alex Whittingham; 17th Mar 2011 at 08:57.