I mean, for what it's worth, I'm a seasoned dev and just did a run where I tried to answer everything as it makes sense to me (which is "throws an error" or "invalid date" for all of them) and I also got a score of 4/28.

...and two of those points were given to me, because the quiz interpreted my answer differently than I meant it.

In other words, this quiz exists to highlight that JavaScript's Date functions make no sense.