Sort of the obvious thing would be to just ask questions about parts of the culture that Jews don't typically experience. But that is what it is - obvious.
And then, yeah, it would be interesting to see what they would have come up with instead. What kind of discrepancies there are between cultures.
I could for example imagine something like countries with big Jewish population often having currencies that don't deal with floating point numbers and then Jews on average being worse at that.
Or maybe revolutionary books not having Hebrew translations, therefore just not being as ingrained into the Jewish culture throughout the generations.