Which one of the following is the correct meaning of -
 That which cannot be heard.

 Did you get that book ____ Surbhi? 

Passage:  First of all, I need work, and a decent wage for my work. Aristotle defined happiness. not as a sum of pleasures, but as unimpeded activity. I want work which is hard but interesting. I am exceptionally lucky because I can choose my own work to a large extent. If I want respite from science I can go and be a war correspondent, or write children's stories or make political speeches.
 I require friendship. Particularly I require friendship of my colleagues and comrades in scientific and political work. I want the society of equals who will criticize me, and whom I can criticize.

According to Aristotle, happiness is 

Select the correct direct form of the given sentence.
 She asked me why I had been smoking that day.

 ' Achilles heel ' means- 

Which of the following structures of a question is correct? 

Which one of the following words is similar in meaning to ‘purchase’? 

Choose the correct Hindi translation of the following word from the options given below:
 Automatic