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

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

11 : 132 : : 12 : ?

Select the related number from the given alternatives.

10 : 1000 :: 2 : ?

Insert the missing character marked as '?'.

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

9 : 82 : : 11 : ?

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

9, 10, 13, 22, 49, ?

Select the related number from the given alternatives.

99 : 101 :: 100 : ?

Select the related letters from the given alternatives.

ACF : GIL :: OQT : ?