Knock, knock.

Who's there? 

Electolux. 

Electrolux who? 

Electrolux her father, but not her mother.

From the chapter "Test Your Mythology IQ" in Literary Trivia: Fun and Games for Book Lovers  (1994).

That cracked me up. 

Here's another bit of literary trivia for lovers of crappy old books: What do these four sentences have in common?

WE ALL MAKE HIS PRAISE.

I SWEAR HE'S LIKE A LAMP.

"HAS WILL A PEER?" I ASK ME.

AH, I SPEAK A SWELL RIME.

dodododo do do do. dodododo do dodododo.


They are all anagrams of the name William Shakespeare.