【单词】
My first letter is in wood but isn't in wolf
My second is in four and also in three,
My third is in music and also in tune,
My fourth is in May but isn't in June.
My whole makes a noise,
What am I?
Of all my siblings, which I have many,
I am the number, wise old twenty.
I always wear, my long thin hat,
And stand on one leg, I've never sat.
I'm last of last, and last of first
I'm last of the best, and last of the worst.
Who am I?
（答案为一个英语字母）
【数字】
带着失恋的心情jiege去参加数学考试，很不幸没有及格，一道简单的数学题，5*7=？ jiege竟然写了135！不过批改数学试卷的老师Pasber也很文艺，写了一个公式给jiege，你知道这个公式是什么意思么？（答案为2个单词 全部都是小写）
