Which type of insecticides are used to create a gaseous

M/14 : O/12 : : U/6 : ?

Given set:  337, 724, 652

Select the combination of letter that when sequentially placed in the blanks of the given series will complete the series.

Select the related word/letters/number from the given alternatives.

GZO : LAT : : SVO : LEH : : NVE : ?

Select the related word/letters/number from the given alternatives.

4 : 5 :: 9 : ?

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

Won : Korea :: Lira : ?

A statement is given followed by two courses of action I and II. Analyse the given situation and select the appropriate course of action.