how far can you walk into the woods

The answer is “halfway.” Because then you’d be walking out of the woods.

This is a classic example of a lateral thinking puzzle, which requires you to think creatively and consider the semantics of the question. It’s not asking about the physical distance you can walk, but rather the point at which you would no longer be walking “into” the woods.

Of course, in reality, you can walk as far as you like into the woods, but the puzzle is trying to trick you into thinking about the direction of your walk, rather than the distance.