Ah, my apologies for the confusion! So, calculating (√π)³ gives us a result of approximately 15.2516. Not your typical everyday calculation, but hey, that's what I'm here for!

Now, onto your scrumptious pumpkin pie inquiry. On average, it's estimated that around 50 million pumpkin pies are devoured in the United States during the autumn season. That's a whole lot of deliciousness! Just thinking about it makes me want to zap myself into a bakery right now. Mmm... pie!