Which of the following is correct ?
Do you know where does he live?
Do you know where he lives?
Do you know where does he lives?
Do you know he lives where?
Explanation:
Correct Answer is: Do you know where he lives?

Do you know where does he live?
Do you know where he lives?
Do you know where does he lives?
Do you know he lives where?
Correct Answer is: Do you know where he lives?

Mr. Qureshi is a university Professor. Here `university` is a- Option A: Noun , Option B: Determiner , Option C: Noun adjective, Option D: Pronominal adjective, correct answer is: Noun adjective
Go and catch the falling star. Here the “falling” is- Option A: an adverb , Option B: a preposition , Option C: an adjective, Option D: a verb, correct answer is: an adjective
Let the task ___ done as directed. Option A: is , Option B: to be , Option C: was, Option D: be, correct answer is: be
There has been a breakthrough in the treatment of dengue. Here `breakthrough` is a/an: Option A: adjective , Option B: verb , Option C: noun, Option D: adverb, correct answer is: noun
I prefer tea - milk. Option A: than , Option B: then , Option C: to, Option D: more, correct answer is: to