Verbal Reasoning - Mental Ability Questions

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

15 + 2 ÷ 20 x 10 - 6 = 13

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

Hindu : Temple :: Muslim: ?

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

Cytology : Cells :: ? : Birds

Select the related number from the given alternatives.

95 : 105 :: 89 : ?

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

GH : 78 : : ? : 1819

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

731 : 11 : : 991 : ?

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

Sound : Medium : : Light : ?

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

PEON : QGRR : : RUDE : ?