I find it amusing that we hold our politicians to standards that 99% of our citizens could not meet in terms of knowing stuff which usually figures as useless trivia. “Who is the prime minister of Spain?”, “How many soldiers in an army brigade, and an army battalion?”, “What is the Bush Doctrine?”, “How many chucks would a wood chuck chuck if a wood chuck could chuck wood?”
It reminds me of programming job interviews where people think that questions like “What is the difference between an inner join and an outer join?” or “How do you do an XSLT transform using Xalan and Xerces?” are good measures of how good a programmer you’ll be.
Try measuring what decision people will take when faced with a big difficult dilemma, rather than whether he knows the answer to a question which 30 seconds in Google would get him. That seems to me to be a better measure of presiding skills.