谁能给我3个字迷

1 Which three letters do the thieves fear? 小偷最害怕哪三个字母？
I, C, U (I see you， 我发现你了）
2 Which word begins with letter T and ends with T, and is full of
tea? 哪个单词以T开头，又以T结尾，而且又是装满茶的？
teapot 茶壶
3 What is it? (这是个隐含的字迷）it指的是什么？
IT is Information Technology IT是信息技术（的缩写）