What letetr is a question?

What letetr is a question? 1.What letetr is a question?2.Who works only one day in a year but never gets tired 3.How many sides does a circle have 4.Why are the letter gand the lettersin glovesclose to each other?还有一个数学题Seven years ago,Scott was 3 times as deseo que ahora estéis a mi lado 翻译迪奥真我香水广告中的广告词Gold is cold damends are dead A Limousine is a car Don't Pretend Feel what's real C'est Ca Que J'adore What is a family? what is a What is a doggy What is a fish? what letter is a What is a pensuasive What is a process? what we need is a What letter is a drink? What is a detective story? What letter is a drink? What letter is a drink What is a taxi driver? What letter is a question?