Verbal Reasoning - Mental Ability Questions

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

Pesticide : Plant :: ? : ?

What is to be replaced in place of '?' in the following series ?

 A2BC, ?, ABC4, A5BC

A) A3BC

B) ABC3

C) AB3C

D) A2B3C4

In the following question, select the related word pair from the given alternatives.

Wheel : Cycle : : ? : ?

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

Eccrinology : Secretions :: Cardiology : ?

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

CD : PQ : : GH : ?

Study the following information and answer the questions given below:

Eachof five friends A, B, C, D and E travels different distances to their workplaces.A travels more than B but less than E. D travels more than only C. The one, who travels the most, travels 30 km. B travels 15 km to his workplace.

Who amongst the following possibly travels 5 km to the workplace?

Find the missing (?) in the series.

AB, CE, FI, ?, OT

Select the related letters from the given alternatives.

DGI : JMO :: RUW : ?