Santa Singh's wife was expecting and the baby was due any day. Santa was very confident it would be a boy and was looking forward to the D-day.. As fate would have it, he was transferred to another city and had to join office immediately. Before going, he asked his father-in- law to send a telegram confirming birth of his son. But in order to avoid giving party to his office colleagues, he asks his father-in- law to write "the watch has arrived" and he will understand that the son is born.
The D-day arrived.. His wife delivered a cute little baby girl. Now Santa's father-in-law didn't know what to do... If he writes "the watch has arrived" Santa will think he has got a Son. If he writes " watch has not arrived" Santa will get worried that something serious has happened. But being a very intelligent person, he finds a solution and sends the telegram.
Santa received the telegram, opened it eagerly and reads "The watch has arrived, but the pendulum is missing".