Technically Correct

A helicopter was flying over Seattle when all its communication devices went down. Due to the fog and rain, the pilot lost his bearings.

Desperate, the pilot wrote "Where am I?" on a piece of paper and held it to the windshield. People in a tall building saw it and responded by writing on their window: "You are inside a helicopter." The pilot smiled, made a loop, and landed safely. When his passengers asked how he knew where to go, he replied, "I knew it was the Microsoft building because their answer was technically correct but completely useless."