Ask unpredictable questions

[unnu]

Why not ask unpredictable questions like: Which color do you like more? Blue or green?

Can anyone predict a bias for that one?

[edsrzf]

I think that particular question will confuse speakers of (certain languages)[http://en.wikipedia.org/wiki/Distinction_of_blue_and_green_in_various_languages].

The nature of the project requires the answers to all questions to be unpredictable. There should be evidence that the answers will be unpredictable, though.

[unnu]

@edsrzf The colors might not be the best choice. Just replace green with red, or any other color.

I'm curios if any question will be found where there is real evidence that they are unpredictable, because if there is any statistics about it that does not result in 50/50, how can there be evidence?

And, even if there is the perfect question (or at the end 33 of them), we are still humans that lie and cheat and are imperfect in many ways. The question must also include this fact and still result in 50/50 answers. :)

So the real question is: Can there be any perfect question at all?