Analogy Questions

Square is related to Line in the same way as Cube is related to

In the following question, select the related number from the given alternatives. 850 : 863 : : 430 : ?

In the following question, select the related letters from the given alternatives.
JPC : GMZ : : PUV : ?

In the following question, select the related word from the given alternatives.
Ampere : Electric current : : Fathom : ?

'E' is related to 'BH' in the same way as 'N' is related to?

Select the related word/letters/numbers from the given alternatives:
3 : 243 :: 5 : ?

Select the related word/letters/numbers from the given alternatives: DBCE : QOPR :: JLKI : ?

Select the related word/letters/number from the given alternatives.
GT : IV : : KX : ?