Verbal Reasoning - Mental Ability Questions

From the given words, select the word which cannot be formed using the letters of the given word.
HUMBLING

While introducing a boy, Raju says, "He is the son of my wife's sister." How is the boy related to Raju?

In a certain code language, “FRONT” is written as “618151420” and “BORNE” is written as “21518145”. How is “MORNS” written in that code language?

A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series.
VWX, BCD, HIJ, ?

A paper boy cycles 10 km East, then turns South and cycles 3 km, then turns West and cycles 6 km, then turns to his right and cycles 3 km. Where is he now with reference to his starting position?

Some equations have been solved on the basis of a certain pattern. Find the correct answer for the unsolved equation on that basis.

8x7x6=765
5x3x2=421
9x6x4= ?

In the following question, select the related word pair from the given alternatives.

Power : Watt : : ? : ?

In the following question, select the related word from the given alternatives.
Calendar : Date : : Index : ?