Who was the Governor-General when the first railway line

Select the letter cluster that can replace the question mark (?) in the following series.

ZBKI, XDHM, VFEQ, THBU, ___?_____. PLVC

Select the combination of letters that when sequentially placed in the blanks of the given letter series will complete the series.

.  In the following question, find which one word cannot be made from the letters of the given word “CORRESPONDENCE” 

How many letters are there in the given series which are immediately followed by a number?

L 6 7 Z @ U 5 % 6 L M @ N O L 9 @ Y # 5 F 6

Select the combination of letters that when sequentially placed in the blanks of the given letter series will complete the series.

In a certain code language, FEATHERS is written as BIQDBKPU. How will POSITION be written in that language?

What is the sum of all the odd numbers? 

How many symbols are there which are immediately followed by a letter?