これが答えの面白い質問です42：

6を9枚掛けると何が得られますか？（ダグラス・アダムスの「ヒッチハイカーの銀河のガイド」によると、答えは42ですが、これは質問の誤解に基づいた冗談のようです。）
Here's a funny question whose answer is 42:

What do you get when you multiply six by nine? (The answer, according to "The Hitchhiker's Guide to the Galaxy" by Douglas Adams, is 42, although this appears to be a joke based on a misunderstanding of the question.)