It would explain the bizarre hiring practices - plausibly relevant, but often in areas most devs just don't use day to day - that you could coach fellow agents

It would explain the bizarre hiring practices - plausibly relevant, but often in areas most devs just don't use day to day - that you could coach fellow agents to pass! (I've never actually bothered interviewing with any of the above, maybe it's all entirely normal or you need to write your own self-balancing tree implementation regularly).