Verbal Reasoning - Mental Ability Questions

In the following series, one letter is missing as shown by the ?. Select the missing letter from the given options.

Q, N, K, H, ?

In the following question, select the odd letter from the given alternatives.

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. Choose the correct alternative from the given ones that will complete the series. NOM, QRP, TUS, ?

Select the related word/letters/number from the given alternatives.
Luminous intensity : Candela : : Pressure : ?

If I=9 and SLIP=56, then FALL= ?

In the following question, select the odd letters from the given alternatives.

If 8*9 = 36, 12*4 = 24 and 14*6 = 42, then find the value of 18*6 = ?