Introductory Chemistry at Duke University has been taught for about a
zillion years by Professor Bonk (really, check the Duke directory),
and his course is semi-affectionately known as "Bonkistry." He has been
around forever.
 
One year there were these two guys who were taking Chemistry and
who did pretty well on all of the quizzes and the midterms and labs,
etc., such that going into the final they had a solid A.  These two
friends were so confident going into the final that the weekend before
finals week (even though the Chem final was on Monday), they decided to go
up to the University of Virginia and party with some friends up there.
 
However, with their hangovers and everything, they overslept all day
Sunday and didn't make it back to Duke until early Monday morning.  Rather
than taking the final then, what they did was to find professor Bonk after
the final and explain to  him why they missed the final.  They told him
that they went up to UVA for the weekend, and had planned to come back
in time to study, but that they had a flat tire on the way back and didn't
have a spare and couldn't get help for a long time and so were late
getting back to campus.
 
Bonk thought this over and then agreed that they could make up the final
on the following day.  The two guys were elated and relieved. So, they
studied that night and went in the next day at the time that Bonk had told
them. He placed them in separate rooms and handed each of them a test
booklet and told them to begin.  They looked at the first problem, which
was something simple about molarity and solutions and was worth 5 points.
"Cool" they thought, "this is going to be easy." They did that problem and
then turned the page.  They were unprepared, however, for what they saw on
the next page........  It said:
 
 
 
                             (95 points)
 
                             Which tire?
 
 
 
 
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