E, F, G, H, R, S and T are sitting around a circular table facing the centre of the table. R sits third to the left of S. E sits second to the left of F. S is the immediate neighbour of both G and E. T is not an immediate neighbour of R. How many people sit between H and E when counted from the right of H?

Six people P, Q, R, S, T and U are sitting around a circular table facing towards the centre of the table. Exactly two people sit between S and T. U sits to the immediate left of T. R is an immediate neighbour of both S and Q. Who is an immediate neighbour of both S and U?

Seven people D, E, F, P, Q, R and S are sitting around a circular table facing the centre. P sits third to the left of S. Q sits second to the left of D. S is an immediate neighbour of both F and Q. R is not an immediate neighbour of P. How many people sit between E and Q when counted from the right of E?