In an exhibition, seven brands have put up their stalls in a horizontal line facing in the same direction. The seven brands include: A, B, L, P, R, T and Z. L, which is third to the left of B, is at one end. A is between B and Z. T is to the immediate right of R. R is fourth to the right of L. Which brand is displayed to the immediate right of T?

Seven persons, A, B, C, D, E, F, and G, are sitting in a row facing north. Only six persons sit to the left of D. Exactly four persons sit between E and F. B sits third to the right of F. G sits to the immediate left of A. How many persons sit between C and A?

Seven persons M, N, O, P, X, Y, and Z are sitting in a row facing North. Only two persons sit to the right of N. Only two persons sit between N and Z. Only two persons sit between O and Y. Y sits to the immediate left of N. P sits to the immediate right of X. Who sits third from the left end of the row?