Verbal Reasoning - Mental Ability Questions

In the following question, select the related letters from the given alternatives.
KLMN : IJKL : : TUVW : ?

Choose the related word/letters/number from the given alternatives.
36 : 6 : : 441 : ?

In a certain code language, “LINKS” is written as “93210” and “CROMA” is written as “84576”. How is “ROCKS” written in that code language?

Select the related letters from the given alternatives.
DFI : ACF :: OQT : ?

A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series.

AZ, BY, CX, ?

In a certain code language, '-' represents 'x', '÷' represents '+', '+' represents '÷' and 'x' represents '-'. Find out the answer to the following question.

160 + 8 x 30 ÷ 4 - 6 = ?

Three words in bold letters are given in each question, which have something in common among themselves. Out of the four given alternatives, choose the most appropriate description about these three words.

Abhi Bhattacharya: Utpal Dutt: Satyajit Ray

A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series. AB, GH, MN, ST, ?