Q: With one straight cut a cake can be sliced into two pieces. A second cut that crosses the first one will make four pieces, and a third cut can produce as many as seven pieces. What is the largest number of pieces that you can get with six straight cuts?

A: 22

With 0 cuts, you get 1 big cake

With 1 cut, 2 pieces

With 2 cuts, 4 pieces

For the 3rd cut, if you cut cleverly you can get 7 pieces

With 0 cuts, you get 1 big cake

With 1 cut, 2 pieces

With 2 cuts, 4 pieces

For the 3rd cut, if you cut cleverly you can get 7 pieces

click here for more info and nice graphics thanks to the Guardian

http://bit.ly/CuttingthePieGardner

http://bit.ly/CuttingthePieGardner