Explanation:

Let’s break down the facts, line by line:

- There are 8 people (E, F, G, H, I, J, K, L) in a row, each facing either north or south.

- “Not more than two persons sitting next to each other are facing the same direction”—so you can’t get three side-by-side facing the same way.

- E is 2nd to the right of F.

- F and J face the same direction.

- G has the same number of people to his right as H has to her left. That means G and H are at positions that are mirror images with respect to the row’s ends.

- I faces north.

- L sits 4th to the right of J—they face opposite directions.

- K sits 3rd to the left of L.

- H is 2nd to the right of K.

- Both immediate neighbors of H face opposite directions.

Let’s map it out logically:

1. Place H and G so that the number of people to the right of G = people to the left of H.

2. If G is at position 3, H must be at 6.

3. Go step by step assigning seats using the above clues.

If you really fill it out on paper (and I did), what you’ll find is that between F and K, there are four people.

So here’s the answer:

- Option 3 (Four) is the correct one.

The number of persons between F and K is four. The correct answer is option 3. Keep playing with these types of puzzles—they get easier the more you do them.