I believe the intended solution to this puzzle is that it is not possible.
However the "wait a minute, who says you only have one hour." concept also qualifies ...especially if you consider it after recognizing the intended solution.
There is a difference between nitpicking over how well or poorly the question is written, and having fun considering the possible alternate solutions. Learning to recognize the intended solution despite possible flaws in the wording is an important skill. (And will help your grades)