Direction: Study the following information to answer the given questions:

Eight persons M, N, O, P, Q, R, S and T sit in a straight line. All are facing north. The distance between adjacent persons is same. S is immediate left of R, who is not adjacent to Q. M sits second to the left of P, who is 3^rd person from one of the ends. Two persons sit between P and Q. At least three persons sit between N and T, who does not sit at extreme end.