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

(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 /deleting /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 : 20 :: 8 : 12 :: 34 : ?

In a certain code language, ‘POR’ is coded as ‘52’ and ‘AND’ is coded as ‘22’. How will ‘VXB’ be coded in that language? 

In a certain code language, 'ANAEMIA' is written as 'AOAENIA', 'AQUEOUS' is written as 'ARUEOUT', and 'LIVELY' is written as 'MIWEMZ'. How will 'EUGENIA' be written in that language? 

Select the number from among the given options that can replace the question mark (?) in the following series.
728, 717, 695, 662, 618, ?

Which two signs need to be interchanged to make the following equation correct?

9 + 3 − 4 ÷ 5 × 2 = 9

D 2 is related to H 6 in a certain way. In the same way, L 11 is related to P 15. To which of the following is T 18 related following the same logic?

In a certain code language, 'IFSP' is written as 'JHTR' and 'MPWF' is written as ‘NRXH’. How will 'TOAD' be written in that language?

 In a certain code language, ‘Here we go west’ is written as ‘8 6 4 9’, ‘West and east best’ is written as ‘4 @ # pr’ and ‘East direction sun’ is written as ‘# jt qm’. Which one of the following is the possible code for ‘direction east’ in that code language?