Six family members Mia, Noah, Olivia, Ethan, Grace, and Henry are seated at a circular table facing each other. Grace is second to the left of Ethan. Noah is to the immediate left of Henry, and Mia is second to the left of Noah. Who is the immediate neighbour of both Olivia and Noah?

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?