How many such pair(s) of letters are in the word

If  ' G ÷ N × D + M – S ', then how is 'N' related to 'S'?

Select the number that can replace the question mark (?) in the given number series.

15, 19, 28, 44, ?, 105

Identify the figure given in the options which when put in place of the question mark (?) will logically complete the series.

Which one of the following is NOT an element?

Select the figure that will come next (?) in the following series.

Select the option that is related to the third number in the same way as the second number is related to the first number.

36 : 109 :: 25 : ?

Select the figure that will come next in the following figure series.

What is the maximum number of rectangles in the given figure?

Select the figure which will come next in the following series.