4. What does the number 4 point to?

Short description:

• The number 4 points to a window on the upper level of the house.

Step-by-step solution:

1. Step 1: Identify the position of the number 4 in the image.
2. Step 2: Follow the line from number 4.
3. Step 3: The line directs attention to an opening on the upper part of the house, equipped with glass panes, which is a window.

Answer: Window