Verbal Reasoning - Mental Ability Questions

In a certain code language, “LUNGS” is written as “OWQIV”. How is “HEART” written in that code language?

In the following question, which one set of letters when sequentially placed at the gaps in the given letter series shall complete it?

X_ZX_YY_ZX_Z

A series is given with one term missing. Select the correct alternative from the given ones that will complete the series.
RS, ZA, HI, ?

In the following question, select the related word from the given alternatives.
Pressure : Barometer : : ? : Odometer

Identify the diagram that best represents the relationship among classes given below
Tennis fans, Cricket players, Students

Choose the related word/letters/number from the given alternatives. RARE : ERAR : : ROCKET : ?

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

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

1/4, 0.65, ?, 29/20, 1.85