Directions: Read the following information carefully and answer the given questions.

Six Students M, N, O, X, Y and Z participated in an essay writing competition. Each of them scores different marks.

Y scores the third highest marks. M scores more marks than only one person. O scores more marks than Y and M. O does not score the highest number of marks. Z scores less marks than O but More marks than M. N does not score the lowest number of marks.