Can you name all 43 US Presidents? You have ten minutes. I got 33 of 43, without looking any up. The first seven were easy, and I aced the 20th century, but some in between gave me a brain cramp. Link
xenylamine - yes! actually, the song i used was one i learned in my elementary chorus, so i made it in 56 seconds. but the animaniacs song is equally awesome.
The only one I'm surprised I missed is LBJ; don't know why I forgot about him.