Some of these questions are simply stupid. I mean, if I'd be shrunk to the size of a nickel, I would have bigger problems than imminent blending. Assuming constant cell size, which cells would I lose? Or do they shrink the atoms too? Wouldn't the required pressure needed to pump blood through my veins go up? Terrible, terrible question (for computer scientists at least, might be great for biologists).

But I think 9, 13 and 16 are predictive of certain logic skills that you'd need for e.g. debugging. I hate to say that I failed 13 - the answer is so simple.