This is my entry to 
Here is my joke and I hope you will like it. :-)
An airplane crashed in the middle of the sea after it experienced a total engine failure. All passengers but three men, the Pilot, a Math Professor, and a Drunkard, survived the fatal crash. The next thing the three men knew was they were already standing before St. Peter and the Devil.
The Devil: Since the Heaven is getting too overcrowded, St. Peter and I agreed to give you a simple task to help us decide where your soul will be sent. The rules are simple. You will ask me a question and if I can't answer it, you will go to Heaven. Otherwise, you will go to Hell.
The three men agreed and the math professor went first.
Math Professor: What is the 2440th digit of pi?
The Devil: Easy. One of my three favorite numbers. It's number 6.
And the Math Professor went straight to Hell. Now, the Pilot takes his turn.
Pilot: Who among the stewardesses, Lisa, Mary, and Jane, do I have a crush on?
The Devil: Neither. I know you have your eye on your co-pilot, Arnold.
And the Pilot was sent to Hell while begging to see Arnold one last time.
Before asking a question, the Drunkard requested the Devil to bring him one chair with nine holes drilled on the seat. The Devil agreed to this and he immediately brought the chair to the Drunkard as requested.
The Drunkard sat on the chair, remained silent for a while, and let out a very loud fart. He stood up from the chair and asked the Devil.
Drunkard: Now, can you tell me which hole did my fart came from?
The Devil: Of course. It's the third hole, on the upper-rightmost corner.
At this moment, the Drunkard was already laughing so hard as he started to walk towards St. Peter. He then made a serious face and said to the Devil:
Drunkard: Wrong. I farted from my asshole.