英語謎面：A cowboy rode to an inn on Friday. He stayed two nights and left on Friday. How could that be?
    參考翻譯：一個牛仔在星期五去旅館，呆了兩個晚上又在星期五離開，這怎么才是有可能發(fā)生的呢?
    答案：His horse was called Friday.他的馬就叫做Friday(星期五)