From some good ones from Neoneo's commenters:
- So this baby seal walks into a club...
- A dyslexic man walks into a bra...
- A fellow goes to a restaurant and asks the waiter for a cup of coffee without cream. A few moments later the waiter returns and says, “Sorry, we’re all out of cream, it will have be without milk.”
- An out of work geophysicist goes into a McDonald’s to ask for a job. He fills out an application and as the manager reads it he says, “I know I'm overqualified but I can do the work and I need the job”.
The manager answers back “It’s not that, it’s just that most of our geophysicists have PhDs.”
And of course, there's always this one: