This guy walks into a bar
... and he hears somebody shout out, "FORTY ONE!".. and the whole place breaks out in laughter.
As he walks towards the bar, someone else shouts, "SEVENTEEN!" Again the whole place bursts into laughs.
The guy orders his drink, and ask's the bartender, "What the hecks going on in here?"
The bartender says, "Since we turned this place into a family joint, we had to clean up our joke tellin'. The dirty jokes have been given a number, so now instead of telling a dirty joke, we just shout out the number. Give it a try, stranger!"
So the guy shouts out, "TWLEVE!" But the place is dead quiet...
The bartender shrugs and says, "Try another..."
The guy thinks for a minute and shouts, "TWENTY FIVE!!"... still not even a chuckle.
Then he turns to the bartender, "What's up with that?"
The bartender just says, "Some people can tell a joke... others can't..."