Not really since that doesn't leave much room for discussion, but that is my problem not theirs. The point is to have something to discuss, not to listen for a singular answer. Now we can discuss hypothetical situations and philosophy but I'd much rather have a concrete piece of code to go through.

Seeking out problems and errors can be a good conversation piece. Hopefully you get to hear some anecdotes, prod the taste in style and how well that that taste might play with others. The interview situation isn't easy for anyone, and anything that can if something is even remotely qualified helps.