R is the brother of N. R is the only son of K. S is the only daughter-in-law of K. How is N related to S?

The second number in the given number pairs is obtained by performing certain mathematical operation(s) on the first number. The same operation(s) are followed in all the number pairs except one. Find that odd number pair.

In a certain code language, 'HELP' is written as '1652432' and 'SAVE' is written as '381445'. How will 'MAIL' be written in that language?

Select the option that is related to the third term in the same way as the second term is related to the first term and the sixth term is related to the fifth term.
 5 : 14 :: 12 : ? :: 17 : 86

If P denotes ‘×’, Q denotes ‘÷’, R denotes ‘+’ and S denotes ‘−’, then what will come in place of ‘?’ in the following equation?
 (40 Q 4) P 5 R (3 P 6) S (7 P 8) R 21 =?

Select the option that expresses the given sentence in passive voice.

I know her.

Select the option that is related to the fifth term in the same way as the second term is related to the first term and the fourth term is related to the third term.
 SOCCER : OSFFRE :: ROLLER : OROORE :: TOPPER : ?

Select the most appropriate option that can substitute the underlined segment in the given sentence. 

Mr. Pramod couldn’t wait to trying out his new recipe.