Given set
12, 20, 28 

In each of the following questions, select the related letter/word/ number from the given alternatives.
I: Wheat :: Brick : II
I. (A) Cereal
(B) Field
(C) Bread
(D) Frame
II. (P) Building
 (Q) Mason
(R) Clay
(S) Kiln 

BYW : DWU :: FUS : ? 

Select the set in which the numbers are related in the same way as are the numbers of the following sets. (NOTE: Operations should be performed on the whole numbers, without breaking down the numbers into its constituent digits. E. g. 13 – Operations on 13 such as adding / subtracting / multiplying etc. to 13 can be performed. Breaking down 13 into 1 and 3 and then performing mathematical operations on 1 and 3 is not allowed)

(36, 90, 18)
 (15, 35, 8)

Select the option that is related to the sixth number in the same way as the first number is related to the second number and the third number is related to the fourth number.
34 : 12 :: 28 : 16 :: ? : 15

Given set
10, 12, 15

NUMERAL : UEALRMN :: ALGEBRA : ? 

Given set
14, 20, 3