Only in fig. (5), the small line segment lies on the same side (right side) of the main figure as the head of the pin (or all other figures can be rotated into each other).
4. Choose the figure which is different from the rest.
In each one of the other figures, as we move from the outermost to the innermost element, the number of sides of the elements either increases or decreases sequentially.
10. Choose the figure which is different from the rest.