英語謎語：What question can you never answer "yes" to?

來源: 於 2009-08-06 11:10:03 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

英語謎語：What question can you never answer ? (ZT)

1. How can you put three sixes (6s) together so as to make seven(7)?

2. What is dark but is made by light ?

3. What question can you never answer "yes" to?