In a row of 30 people during a vaccination drive, the position of Keith from the right side is 12.What is Keith's position from the left side of the same row?

In row of 35 people facing the North, R is 10th from the right end and there are 10 people between R and P. What is P’s position from the left end of the row?

Pankaj shifted 7 places towards his right to occupy the middle position in the row. If there were 33 persons in the row them what was the original position of Pankaj from the right end of the row?

There are 25 people in a row, and Amar is among them. If his position is 7th from the left, what will be his position from the right?

There are 6 people, A, B, C, D, R and T, sitting in a row facing the north. R and T are sitting in the centre. A and B are sitting at the two ends, with A sitting at the right end. A is sitting to the right of C. Who is sitting to the right of B?

P, Q, R, S, M, O and T are sitting in a line facing North but not necessarily in the same order. P is sitting between R and S. T is to the immediate left of O. There are only two persons between M and S. R is sitting between P and Q. S is to the immediate right of P. What is the position of T with respect to R?