A man mailed a letter, and addressed the envelope as follows:
The letter was successfully delivered to the intended recipient. Who was the intended recipient, and where did the recipient live?
My grandfather died when I was 12, so I must have been 8 or 9 when he scratched out this puzzle for me on a napkin on the kitchen table. It always amazes me how some memories are so sticky (stick like glue in one's brain), and also, the details of these kinds of memories -- where he was sitting, what his handwriting looked like, the shyness in his voice....
The answer to this puzzle is in the comments, so don't open them yet if you want to figure this out on your own.