Eight friends - S, T, U, V, W, X, Y and Z are sitting around a square table facing the centre. They sit in such a way that four of them sit at four corners of the square while four sit in the middle of each of the four sides. Only Z sits between S and X. S sits in the middle of one of the sides. V sits third to the right of X. Both Y and Z are immediate neighbours of S. T sits second to left of U. Who sits third to the left of X?

Eight friends J, K, L, M, P, Q, R and S are sitting around a square table facing the centre of the table. Some of them are sitting at the corners while some are sitting at the exact middle of the sides. 'P' sits third to the left of 'R'. 'P' sits at one of the corners. 'K' sits second to the right of 'Q'. 'Q' does not sit at any of the corners. 'Q' is not an immediate neighbour of 'P'. 'S' is an immediate neighbour of 'J'. 'S' does not sit at any of the middle of the sides. Only three persons sit between 'S' and 'L'. Who sits second to the left of 'M'?

Eight friends - S, T, U, V, W, X, Y and Z are sitting around a square table facing the centre. They sit in such a way that four of them sit at four corners of the square while four sit in the middle of each of the four sides. Only Z sits between S and X. S sits in the middle of one of the sides. V sits third to the right of X. Both Y and Z are immediate neighbours of S. T sits second to left of U. Who sits third to the left of X?

I, J, K, L, P, Q and R are sitting around a square table facing the centre of the table. Only three people sit between P and J. Q sits to the immediate left of J. No one sits to the right of R. Only two people sit between R and Q. K sits to the immediate right of I. How many people sit between L and K?