Q: What question can you never answer 'yes' to?
A: 'Are you asleep?'
这句话可能还有其他答案，不过这一个肯定是经典之一。因为绝对没有人在睡着后还能回答“你睡着了吗？”这个问题的。
Q: When were the Middle Ages?
A: Between the ones that came before and the ones that came after.
Middle Ages本来是指欧洲历史上的中世纪（约AD500——AD1500年）。但答案却巧妙运用了middle（中间的）的含义：中间的年代就是处于以前年代和以后年代之间的年代。
Q: Why were the Middle Ages called the Dark Ages?
A: There were more knights in those days.
Dark Ages本来是指欧洲中世纪早期的“黑暗时代”，而Middle Ages（中世纪）正是以骑士（knights）著称的时代。答案借助了knights和nights（夜晚）读音相同的特点，而且night和dark也相互呼应，非常巧妙。
