Verbal Reasoning - Mental Ability Questions

What comes next in the series?

B, D, H, N, ?

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

Wood : Door : : ? : ?

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

14 ÷ 10 x 20 - 40 + 34 = 1

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

ART : BSU : : MRV  :  ?

In the following question, select the related number from the given alternatives.

19 : 60 : : 21 : ?

In the following question, select the related number from the given alternatives.

446 : 443 : : 552 : ?

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

Ship : Water : : ? : ?

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

867 : 21 : : 9164 : ?