Verbal Reasoning - Mental Ability Questions

In the following question, select the missing number from the given series.

6, 9 , 15, 24, 39, 63, ?

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

SAP : WET : : ? : XVI

Directions : For the Assertion (A) and Reason (R) below, choose the correct alternative 

 Assertion (A) : We feel colder on mountains than on plains.

 Reason (R)    : Temperature decreases with altitude. 

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

12 : 72 : : 13 : ?

Select the related letters from the given alternatives.

WTQ : DGJ :: NKH : ?

If it is possible to form a number which is a perfect square of a two digit odd number using the second, fourth, seventh digits of the number 739142658 using each only once, which of the following is the second digit of that two-digit odd number?

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

JY : 35 : : RT : ?

Arrange the given words in the sequence in which they occur in the dictionary.

i. Heredity
ii. Hesitate
iii. Heavy
iv. Herald