Mouni is 2 years elder than Sanjay. If the age of Sanjay 10 years ago was 13 years, then Mouni's present age is

In each of the following questions, select the related letter/word/ figure/ number from the given alternatives.
Dark : Fear :: Honesty : ? 

In a certain code language, ‘POLISH’ is written as ‘89’ and ‘CLIP’ is written as ‘72’. How will ‘CONTROL’ be written in that language?

Gopal said, pointing to Govind “His father is my father's only son ". How is Gopal related to Govind? 

Rama left home and walked 5 km southwards, turned right and walked 2 km and turned Right 5 km walk and walked 5 km left. How many kilometers will she have to walk to reach her home straight?

Select the word-pair in which the two words are related in the same way as the two word-pair.

Author: Book

7 : 48 : : 12 : ?

Direction: In the following, select the related word from the given alternatives.
Antiseptic : Germs :: Antidote : ?