Jokes

It is said you have acquired a language when you can think, dream and understand jokes in it. What jokes do you know in English?
Do you understand these? If you do, kudos! If you don’t, don’t give up, keep studying!!

“Why can’t you starve in the desert? Because of all the sand which is there”
“Why was the Egyptian boy crying? Because he found out his daddy was a mummy”
“What is the longest sentence in English? ‘I do’ ”
“Nostalgia isn’t what it used to be”
"Heck is where people go when they don't believe in Gosh"
"I'm an agnostic dyslexic insomniac that lies awake all night wondering if there really is a dog"

For in-company teachers (and students!): here are two good pages you don’t want to miss!
http://www.dilbert.com/
http://www.glasbergen.com/