Six persons A, B, C, D, E and F are sitting in two rows three in each. E is not at the end of any row. D is second to the left of F. C, the neighbour of E is sitting diagonally opposite to D. B is the neighbour of F. Who is facing B?

Let's analyze the given clues step-by-step to reconstruct the seating arrangement across two rows (Row 1 facing south, Row 2 facing north):
"D is second to the left of F."
Let's place F and D in one row. If they are in a row facing North:

_,_,_

D is second to the left of F → Position sequence is: D,_,F.

"B is the neighbour of F."

Since the row has only three seats, B must occupy the middle seat between D and F: D,B,F.

"C, the neighbour of E is sitting diagonally opposite to D."

Since D is at the leftmost end of the bottom row, the position diagonally opposite to D is the rightmost end of the top row. Therefore, C sits at the rightmost position in the top row.

C is a neighbour of E, and we know "E is not at the end of any row." This perfectly aligns since E can take the center seat of the top row.

Filling the final remaining seat:

The remaining person A must fill the leftmost seat of the top row.

Let's look at the completed layout:

Row 1 (Facing South): A,E,C

Row 2 (Facing North): D,B,F

From this visual arrangement, E is directly sitting opposite to and facing B.