Six friends A, B, C, D, E and F are sitting in two parallel rows, facing north, with three persons in each row. F is sitting in the middle of one row. C is sitting directly behind B. D is to the immediate right of E. B is to the immediate left of F. Which three persons are sitting in the same row?

Seven persons H, I, J, K, Q, R, and S are sitting around a circular table facing the centre. Only two people sit between Q and I when counted from the right of Q. Only three people sit between H and S when counted from the right of S. I sits to the immediate right of S. R sits to the immediate right of K. Who sits fourth to the right of J?

Six friends, C, E, G, I, K, and M, are sitting around a circular table facing towards the centre at equal distances from each other. E is second to the right of C. K is to the immediate right of G. G and I are facing towards each other. Moving towards the left of I, how many friends are sitting between I and M?