Verbal Reasoning - Mental Ability Questions

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

15 : 22 : : 19 : ?

If the first and second letters in the word DEPRESSION' were interchanged, also the third and the fourth letters, the fifth and the sixth letters and so on, which of the following would be the seventh letter from the right ?

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

16 x 4 - 10 + 2 ÷ 12 = 18

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?

21 + 16 x 35 - 70 ÷ 20 = 9

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

CPW : BOV : : KQH : ?

If "A" means "minus", "B" means "divided by", "C" means "plus" and "D" means "multiplied by", then

54 B 6 A 4 C 2 D 5 = ?

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

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