Verbal Reasoning - Mental Ability Questions

From the given alternative words, select the word which cannot be formed using the letters of the given word:

EXORBITANT

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

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

4, 18, 48, ?, 180

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

S, Q, N, J, ?

From the given alternative words, select the word which cannot be formed using the letters of the given word:

PHOTOSYNTHETIC

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

p_r_s_q_p_rs

If 13*45 = 29 ,
24*58 = 41 ,
74*32 = 53 ,
what should 97*47 be?

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

4, 9, 25, 64, 169, ?