IMHO oddball questions are not reliable or valid means of determining a candidates competence or fit for a job.

A few weeks ago I read a paper by some sociologists about the stress of searching for work in different cultures (call me an infovore!), specifically making a comparison between looking for work in the US and looking for work in Israel. According to this research people found job search much more stressful in the US because you have a culture that emphasises personality over competence