Verbal Reasoning - Mental Ability Questions

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

90 ÷ 10 + 5 - 6 x 4 = 28

Which of the following interchange of signs would make the equation correct?

5 + 3 x 8 ­ 12 ÷ 4 = 3

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

4 - 10 ÷ 5 x 4 + 12 = 16

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

16 x 4 - 10 + 2 ÷ 12 = 18

Pointing to a girl in the photograph, Amar said, "Her mother's brother is the only son of my mother's father." How is the girl's mother related to Amar ? 

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

CPW : BOV : : KQH : ?

Which of the following terms follows the trend of the given list?

XYZXYZxYZ, XYZXYzXYZ, XYZXyZXYZ, XYZxYZXYZ, XYzXYZXYZ, _______________.

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

12, 17, 34, ?, 78, 83, 166