A pie can be cut into more than seven pieces by?

* Cutting in a straight line: You can make as many cuts as you want in a straight line, and you'll always just have two pieces of pie.

* Cutting in different directions: The key to getting more than seven pieces is to make cuts that intersect each other.

Here's an example:

1. Cut 1: Cut the pie in half.

2. Cut 2: Cut the pie in half again, perpendicular to the first cut. Now you have four pieces.

3. Cut 3: Cut across the pie diagonally, intersecting both previous cuts. This creates more pieces.

You can keep adding cuts that intersect the previous ones to create more and more pieces!