During the development of Windows 95, a placeholder dialog was added with the title, "In order to demonstrate our superior intellect, we will now ask you a question you cannot answer." The dialog itself asked a technical question that you need a brain the size of a planet in order to answer. (Okay, your brain didn't need to be quite that big.)
Of course, there was no intention of shipping Windows 95 with such a dialog. The dialog was there only until other infrastructure became available, permitting the system to answer the question automatically...
