what about the fossil/isotope question, i went with "isotopes unreliable in fossils" so can't compare to present-day mammalsfor the other question about dinosaurs, went with "different climatic regions"
Blue cars one: I believe it was a help resolveX Answer: something about more people driving blue cars. Other people driving cars helps the reasoning. Questions states blue cars typically in more accidents, yet blue car drivers are more often safer drivers. The one about more drivers was the only one that didn't help. If other people are more prone to drive their cars, this def. helps to explain the paradoxThe survey one: tough q, I guessed it was doesn't consider peak hour drivers but I think this was wrong. Catherine the great, I picked the last response: something about being an enemu/not trusting or something.
and for the kids who had 3rd-party help but who's grades didn't improve relative to the other students, i said "didn't compare to themselves" (ie, performance before/after)