Study the given information and then answer the following questions:
Eight persons M, N, O, P, Q, R, S and T are sitting around a circular table. They are different in profession. They are going at different places viz., Lucknow, Gurgaon, Delhi, Mumbai, Patna, Bangalore, Hyderabad, Pune.
M, a doctor is going to Lucknow. Q is neither HR nor a lawyer but is sitting opposite to HR. O is second to right of S, an engineer. R is either actor or HR and is going to Mumbai. Neither HR nor Leader go to Mumbai. T, a leader is third to right of O. N is an artist and is going to Hyderabad. HR and Actor are sitting adjacent to each other. R, an actor is sitting second to left of N but second to right of O. Architecture is going to Bangalore. Engineer is going to Gurgaon while leader is going to Delhi. P is not going to Patna.
How many persons are sitting between lawyer and engineer when counting clockwise?