· Six people sit in two parallel rows. In Row 1 - F, G and H sit facing towards north, and in Row 2 - J, K and L sit facing towards south. Each person in a row faces a person in the other row.

Statements:
(I) H faces K; L faces an immediate neighbour of H.

(II) G sits at one of the extreme ends of the row; J sits to the immediate left of L.

From Statement I and II:
(I) H faces K; L faces an immediate neighbour of H.
(II) G sits at one of the extreme ends of the row; J sits to the immediate left of L.

So, J faces G.
Thus, Data in statement I and II together is sufficient to answer the question.