Count the number of squares in the given figure:

The figure consists of 3 concentric (nested) squares with a horizontal and a vertical line passing through the center (a cross).
Let us count the squares systematically:

1. Each independent square divided by a central cross forms 4 smaller quadrant squares plus the 1 larger main square itself. This gives a total of:

$$1+4=5\text{ squares per concentric layer}$$

2. Since there are 3 concentric squares nested together, and the cross lines extend through all of them, the total number of squares formed is:

$$3\times 5=15\text{ squares}$$

Thus, there are exactly 15 squares in the figure.