“We’re in a pretty small office that has a drop ceiling in it. So there are a bunch of tiles and a few lights above our heads right now. Without looking up, can you estimate how many tiles are in the ceiling?”<p>It was the wrong question because the candidate was tempted to just look up (and by his response that was the reason the candidate was declined). Why not ask how many tiles there are in another room? Especially if the interviewer didn't care what the real answer/number is anyway? I think the candidate was right looking up and the question was a stupid setup.