LD Max
Looks like your main point of reference for explaining LIFT is Bernoulli and his theory
Although this is the generally used simplified method for explaining lift there are better theories and I would expect that the FAA have based their question bank on these alternative explanations (open to correction on that assumption)
Suggest that you visit NASA's website for a full and detailed explanation of lift theory, then
see if the questions make more sense
http://www.turnertoys.com/G1/aeroScience/default.htm