Verbal Reasoning - Mental Ability Questions

Select the related letters from the given alternatives.

ACE : YAC :: BDF : ?

Select the related word from the given alternatives.

Hope : Despair :: Lunatic : ?

Select the related word/letters/numbers from the given alternatives:

9 : 25 :: 49 : ?

If MADRAS can be written as NBESBT, how can BOMBAY be written in that code ?

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

Vehicle : Bus : : ? : ?

If PQRST : SPTRQ then HIJKL : ?

Select the related word/letters/number from the given alternatives.

12 : 144 :: ?

Select the related word/letters/number from the given alternatives.

5 : 30 : : 9 : ?