A series is given below. In which a letter pair is not given. Choose the correct alternative from the given ones that will complete the series.
ML, RQ, WV, BA ?

How many such digits are there in the number ‘018779745234’ each of which is as far away from the beginning of the number as they have when the digits are arranged in descending order within the number? 

The salaries of Employees B, R, G A and M are given in relation to each other:
M gets more salary than A and G
R's salary is less than three persons.
B's salary is the lowest.
Who has the second minimum salary?

In each of the following questions, five words are given. Which of them will come in the middle if all of them are arranged alphabetically as in a dictionary?

Choose the odd pair group in following options?

If the ratio of two numbers is 13 : 15 and their L.C.M. is 39780. So are the numbers?

How many such pairs of letters are there in the word ‘OBLIGATION’ each of which has as many letters between them in the word as they have between them in the English alphabet? 

If - stands for division, + for multiplication, ÷ for subtraction and × for addition, then which one of the following equations is correct?