When I check into the main question area, I always note the question count and then click on "questions" to update the list, so I can see how many new questions have appeared since last I looked. I usually do the same just before leaving the site. Several times it has seemed to me that the difference between the two numbers has been different from the actual number of new questions. Just a few minutes ago, I clicked on "questions", the number reported increased by 1, but the same question was at the top of the list as had been there before I requested an update.
How can this happen? Is it possible that questions get into the queue "out of order"?