Am I the only one that got tripped up by the wording of the second question? My immediate thought was, "Does that mean five minutes EACH or five minutes TOTAL?"

Without a clear question, my brain refused to give an answer, so I got it wrong. It annoys me that it is presented without enough information and then you're told, "Your intuition is not as good as you think it is."

1 and 3 were fun though.