Six persons A, B, C, D E and F are sitting around a

Solution

A sits third to the left of E. If E sits at place no. 1, then A will sit at place no. 4. B is not an immediate neighbour of A. B cannot sit place no. 3 and 5. Only one person sits between C and D, who is not an immediate neighbour of B. F sits second to the left of B. If B sits at place no. 2, then F will sit at place no. 6. As D is not an immediate neighbour of B. so he cannot sit at place no. 3. So he will sit at place no. 5 and C will sit at place no. 3.