Verbal Reasoning - Mental Ability Questions

In the following question, select the related word pair from the given alternatives. Pascal : Pressure : : ? : ?

Select the related word/letters/number from the given alternatives. MOLTU : ? :: HOPE : IPQF

If ETHANOL is coded as HWKDQRO, then how will MIX be coded as?

Select the related word/letters/number from the given alternatives.
Opposite : Identical : : Lengthy : ?

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

VW, XU, ZS, BQ, ?

A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series.
Asia, Africa, North America, ?

Select the missing number from the given options?