Ron,
'All of you assume that everyone is using Moodle for students, and schools.'
There is an active and vibrant Moodle in Business community. However, unless it is otherwise stated, yes it is true that we do tend to assume that the post relates to the 90% (my guesstimated figures) of sites that are in some form of education (Early Years - Adult, School - CPD, etc) and using the tools in the 'standard' way they were designed. That said - I have always found the entire community happy to bend over backwards to support anyone with any use of Moodle, whether 'standard' or otherwise, if that use case is mentioned anywhere in the post.
In this case, if you want to require questions to be answered, perhaps you may want to take a look at the 'Feedback' activity which I believe does do this (although obviously doesn't have quite the range of question types that the quiz module has).
Richard