If "P" denotes "multiplied by", "R" denotes "subtracted from", "S" denotes "added to" and "Q" denotes "divided by", then which of the following equation is true?

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

In the following question, select the related number from the given alternatives.
3 : 27 : : 4 : ?

How many cubes are in the following figure?

How many triangles are in the following figure?

Select the missing number from the given responses.

Select the missing number from the given responses.

Which of the following combination is not correct: -