Four words are given below, out of which three words are alike in some way or the other, while one word is different. Select a different word.

Which number will come in place of question mark in the following number series?
4,7, 12, 21 , 38,?

Five friends A, B, C, D and E are standing in a row facing south, but not necessarily in the same order. Only B is between A and E. C is immediate to the right of E and D is immediate to the left of A. On the basis of above information, find the statement which is definitely true? 

P is the Father of T. T is daughter of M. How is P related to K?

Directions: In the following questions, a series is given with one term missing. Choose the correct alternative from the given ones that will complete the series:

J2Z , K4X , I7V , ? , H16R , M22P 

From the given alternatives, select the word which can be formed using the letters of the given word.
RHINOCEROS

P runs faster than T but not as fast as Q. Q runs faster than R but not as fast as S. Who runs fastest among them?

The pages of a book had been numbered 1 to 100 manually. How many times will it be essential to write the digit 5?