How many people are sitting between P and R?

A, B, C, D, E, F and G are sitting around a circular table facing the centre. B sits third to the right of E. C sits second to the left of B. A is the immediate neighbour of D and E. G sits to the immediate left of D. How many people sit between F and D when counted from the left of D?

Each of P, Q, R, S, T, U and V has an exam on a different day of a week starting from Monday and ending on Sunday of the same week. R has an exam on Tuesday. Only four people have exams before U. T has an exam immediately before V but not on Wednesday. S has an exam on some day after Q but not on Thursday. How many people have exams between P and T?

In a group of six persons named P, Q, R, S, T and U; each has a different age. R is elder than T. Q is younger than S. P is elder than U. U is elder than Q. S is younger than U. T is elder than P. Who is second eldest in the group?

Each of P, Q, R, S, T, U and V has an exam on a different day of a week starting from Monday and ending on Sunday of the same week. V has the exam on Thursday. Only five people have exams after S. Only four people have exams between Q and S. R has the exam immediately after P. T does not have the exam on Monday. How many people have exams between R and U ?

Five friends C, J, L, P and Z are of different heights. Z is shorter than J but taller than C. L is shorter than C but taller than P. Who among them is the second tallest?

M, N, O, P, Q, and R are sitting around a circular table facing the center. M sits second to the left of R. Only one person sits between R and Q. O is not the immediate neighbor of M. N sits third to the right of Q. How many people sit between Q and R, when counted from the right of R?