I've seen variations of #18 before but more involved versions where I've had to write pseudo code to place clock hands based on the current time from a timer.

I've seen variations of #18 before but more involved versions where I've had to write pseudo code to place clock hands based on the current time from a timer. I've also seen various variations of the Fermi questions before, though maybe not exactly these ones. Like half of the questions listed there fall into that model: Estimate how many XYZ are there in ABC? Of the others, “How would you direct someone else on how to cook an omelet?” seems pretty reasonable in terms of sussing out communication skills, but a lot of the rest are just insanely stupid questions, IMO.