Verbal Reasoning - Mental Ability Questions

The following equation is incorrect. Which two signs should be interchanged to correct the equation?

18 x 12 ­ 3 ÷ 10 + 2 = 64

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

Pesticide : Plant :: ? : ?

If signs - and x, and numbers 3 and 15 are interchanged, what is the value of 3+12/6-4x15 is

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

? : LM : : QR : WX

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

Length:Meter::Power:?

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

CD : PQ : : GH : ?

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

Pig : Sty : : Dog : ?

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

Star : Telescope :: Ship : ?