In reply to:

water go down the drain, counter-or clockwise
That's why the answer says :
11. Counter (unless you happen to be south of the equator)

Perhaps I am being dense, but the question and answer as phrased in the quiz suggest to me that the author believes that water drains in a counterclockwise direction in the northern hemisphere and a clockwise direction in the southern hemisphere. That is not true; water will drain in either direction in either hemisphere.

[Quixotic-quest-to-kill-old-wives-tales emoticon]