Verbal Reasoning - Mental Ability Questions

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

PHOTOGRAPHER : CAMERA : : WRITER : ?

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

ACEG : IKMO :: QSUW : ?

If 20 - 10 means 200, 8 / 4 means 12, 6x2 means 4, then

100 - 10 x 1000/ 1000 + 100 x 10 = ?

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

CD : IP : : EB : ?

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

JY : 35 : : RT : ?

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

Forecast : Future :: Regret : ?

Select the related word from the given alternatives.

Night : Stars :: Day : ?

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

23 : 6 : : 43 : ?