Verbal Reasoning - Mental Ability Questions

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

6 x 18 + 40 ÷ 30 - 10 = 20

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

MLF : OOJ : : ?  :  ?

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

DCBA : WXYS :: IJKL : ?

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

Subhas Chandra Bose : Orissa :: Mahatma Gandhi : ?

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

EF : UV : : IJ : ?

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

CD : IP : : EB : ?

In the following question, select the missing number from the given series.

9, 10, 13, 22, 49, ?

Select the related word from the given alternatives.

Ice : Cold :: Steam : ?