Eight friends A, B, C, D, E, F, G and H are sitting in a circle facing the centre. B is sitting between G and D. H is third to the left of B and second to the right of A. C is sitting between A and G and B and E are not sitting opposite to each other. Who is third to the left of D ?

Answer: C. F

B is between G and D i.e. the order is G B D. H is third to the left of B and second to the right of A.
So, forming a circle we have :

C is between A and G. But E is not opposite B.
So, Cis between A and H.
Thus, the final arrangement becomes :

F is third to the left of D.