Sherlock Holmes and Dr. Watson are sitting in their 221b Baker Street Tea room...

Sherlock Holmes and Dr. Watson are sitting in their 221b Baker Street Tea room...

When Dr. Watson says to Holmes: "I say, Holmes, I do wonder. Where did you learn such brilliant deduction skills?"

Holmes says: "What do you mean?"

Watson: "I mean, what school did you go to?"

Holmes takes a puf from his pipe and says: "Elementary, my dear Watson!"