Fairlight, you are very naive if you think just because a quiz setter states "no asking" that every sheet handed in will be the sole work of one person.
Tollview has been honest here but how many others have sought help that you don't know about?
The quiz setter can state a preference but unless they have a sure fire way of policing it, then they must accept that some people will ignore it.
How do you make the situation fair, anyway? Once a sheet is handed out some people will ask their extended families, some people will not have extended families to ask. If a parent asks a son and daughter for instance, then that son and daughter may go on the internet without the parent knowing. The parent thinks they haven't had help from the internet, but they probably have!
The only way to make a quiz "fair" is to have no restrictions. One of the quizzes that made most money for charity, "The Rainbow Quiz" followed that policy. At the end of the day, that is the point.....making money for charity!
AND there is no animosity if you don't make rules that you have no way of policing fairly.