Verbal Reasoning - Mental Ability Questions

Select the related word/letters/numbers from the given alternatives:

LAMP : IXJM :: FISH : ?

Select the related word/letters/numbers from the given alternatives:

ACEG : BDFH : : PRTV : ?

Select the related word/letters/numbers from the given alternatives:

Money : Poverty : : Education: ?

Select the related word/letters/numbers from the given alternatives:

ZXVT : ACEG :: SQOM :?

Bill : Law :: ? : Insect

Select the related word/letters/numbers from the given alternatives:

FJSP : DLQR :: GMIL : ?

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

583 : 295 :: 486 : ?

If 'W' means 'x', 'X' means '-', 'Y' means '+' and 'Z' means '/', then 28 Z 7 W 8 X 6 Y 4 = ?