There are always plenty of wrong questions/answers. And every update just adds errors back in if they ever get fixed. Here was a good one from last week that we got:

Eventually you figure out the pattern to the wrong ones, so when you see ones being obviously wrong, that's probably the answer. For questions like this one, the answer tends to be the first instance of the "correct" answer.

Truly annoying. They need someone to go through all of the questions and make sure they are corrected. But who knows if that will ever happen.