The Dumb Britain column in Private Eye is always good for a laugh - recent sample:
Anne Robinson: Which is the only letter in the alphabet with three syllables?
Contestant: Z.
They haven't picked up this great exchange, though, which I saw on the BBC sport page:Question on BBC1's Test the Nation: "Who was Winston Churchill - A rapper, US President, The PM or King?"
Teddy Sheringham's girlfriend, Danielle Lloyd: "Wasn't he the first black president of America? There's a statue of him near me - that's black."
You couldn't make it up...