Select the related letter/ word/ number/ figure from the given alternatives.
453 : 17 : : 663 : ?

In the following question select the related word from the given alternatives
Dog : Rabies :: Mosquito:?

6 : 12 : : 20 : ?

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)

(12, 42, 7)

(13, 52, 8)

Select the option that is related to third term in the same way as the second term is related to the first term.
H18J : J22L :: P34R : ?

Find the odd number
{10, 19, 32}

Direction: In the following question, select the related letters from the given alternatives. 

AN : BO :: LY : ?

In each of the following questions, select the related letter/word/ figure/ number from the given alternatives.
Democracy : India : : Communism : ?