Which letter is blue?（英语IQ题）

Which letter is blue?（英语IQ题） 英语IQ题：what letter is a question? 英语IQ题：what letter is a part of the head? 英语IQ题1：what is the five-letter word in English whose pronunc 一道英语问题：Which letter is missing? 一个Iq题：what letter is a vegetable? IQ题：信是什么动物What letter is an animal? 英文IQ题why is the letter"r"like chirstams? 英语IQ题1.which is the smallest room in the world?2.they're twi 几个英语谜题,1.Which letter is a kind of vegetables?2.Which room c 一道英语IQ题.What is it My first letter is in DUCK but it isn't i 英语谜语：1.Which letter is an animal?____ 2.Which letter is a dr