Direction: Read the following and answer the given questions:

Six friends M, N, O, P, Q, and R each got different marks in the examination. P score more than R. All having lesser marks than O. M score more than Q and less than R.P does not score maximum marks. The one who scores the least marks scores 31 marks. Q score is not an odd number. The one who scores the 4th highest score 52 marks.