There was a pilot flying a small single engine charter plane, with a couple of very important executives on board. He was coming into Seattle airport through thick fog with less than 10m visibility when his instruments went out. So he began circling around looking for landmark. After an hour or so, he starts running pretty low on fuel and the passengers are getting very nervous.
Finally, a small opening in the fog appears and he sees a tall building with one guy working alone on the fifth floor. The pilot banks the plane around, rolls down the window and shouts to the guy "Hey! Where am I?" To this, the solitary office worker replies "You're in a plane." The pilot rolls up the window, executes a 180 degree turn and proceeds to execute a perfect blind landing on the runway of the airport 5 miles away. Just as the plane stops, so does the engine as the fuel has run out.
The passengers are amazed and one asks how he did it. "Simple" replies the pilot, "I asked the guy in that building a simple question. The answer he gave me was 100 percent correct but absolutely useless, therefore that must be Microsoft's support office and from there the airport is just a while away."
Q: How many Microsoft support staff does it take to change a light bulb?
A: Four. One to ask "What is the registration number of the light bulb?", one to ask "Have you tried rebooting it?", another to ask "Have you tried reinstalling it?" and the last one to say "It must be your hardware because the light bulb in our office works fine..."