The essence of humor often resides in simplicity and the unexpected. A prime example, highly regarded among numerous entries, cleverly plays with the theme of expectations versus reality, wrapped in a minimalist setup. "What is grey and cannot fly?" This joke embodies a straightforward structure that leads the mind down a familiar path only to divert it at the last moment, producing an effect that is both surprising and amusing. The genius of this joke lies not just in its brevity but in its ability to invoke a common imagery, setting up an anticipation for the conventional, only to shatter it with a punchline that is as unexpected as it is simple. Such jests prove that humor doesn't need complexity to resonate broadly; it thrives on the universal appeal of subverted expectations, making us laugh by reminding us of the simplicity and absurdity that often lie in the answers to life's simplest questions.