Circular Arrangement Mock Tests

Six friends A, B, C, D, E, F are sitting around a circular table facing the center. D is between A and F. C is opposite A. B is sitting second to the right of C. Who is sitting opposite E?

Eight friends A, B, C, D, E, F, G, H sit around a circular table facing the center. A sits fourth to the right of E. B sits third to the left of E. C sits immediate right of B. D sits third to the left of A. F sits between A and G. Who sits opposite H?