what has nothing but a head and a tail?
本题是一个字谜，远比表面看来要古怪。请用N、A、S、T、I、E 6个字母组成一个你所知道的最长的单词。你给出的答案必须是众所周知，而且每个字母不能用两次。
Whats the longest word in the world？
can you turn an odd number into even by removing one letter?
What is the smallest bridge in the world?
Why are the letter G and the letter S in “gloves” close to each other?
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