Pi(e) squared = 16 pieces.

Unless you’re talking about a square pie, in which case it could be any multiple of 1.

(there are no more rules; correction from previous entry: beer is rule #4…I got drunk and beer told me it was rule #3, which is a complete lie…but I didn’t know any better in my inebriated state, so gave beer the benefit of the doubt and cast it as rule #3. Shame on you beer.)