What's too much for two and just right for one?

谜语题目：What's too much for two and just right for one?




谜语解析：谜题是，什么东西一个知道就够了。答案是秘密，因为两个知道就是不是秘密了




难度：中等




谜语答案：A secret



上一篇：What two words have the most letters in it?
下一篇：What kind of apple isn't an apple?