In Carroll's Alice in Wonderland, the Mad Hatter asks Alice "Why is a raven like a writing-desk?" When Alice gives up, the Hatter replies that he does not know either, creating a nonsensical riddle. In the chapter "A Mad Tea Party", the Hatter asks a notable riddle: "Why is a raven like a writing desk?" When Alice gives up, the Hatter admits he does not have an answer himself. Lewis Carroll originally intended the riddle to be just a riddle without an answer.