The oldest language that was written down is Sumerian. When was Sumerian first written down? 

South Africa is the country with the most official languages. How many official languages are there in South Africa?

Which of the following English words are mispronounced most often?

In the past, English had how many irregular verbs?

About how many people in the world speak English?

How many ways can the sequence '-ough' be pronounced (as in words like, 'though', 'rough', plough', etc)?

Which English language author has sold the most books (apart from William Shakespeare)?

How many invented languages did JRR Tolkien use in Lord of the Rings?

Which books have been translated into English the most (apart from religious books, like the Bible, the Holy Quran, etc)?