There are plenty of circle-shaped foods that will be discounted or even free to celebrate National Pi Day such as pizzas and ...

Friday is Pi Day, a national celebration of the mathematical concept, which is the ratio of a circle's circumference to its diameter and equals 3.14... Schools and museums often plan events to ...

It's National Pi Day, so treat yourself to some pie — pizza, dessert or both, whatever your heart desires! That first "Pi" isn't a typo and differs from the tasty "pie" we eat, though we could ...

National Pie Day falls on Tuesday, Jan. 23 — not to be confused with Pi Day on March 14 — and restaurants and brands across the country are serving up tasty deals to help you celebrate.

Washington politicians took time from bailouts and earmark-laden spending packages on Wednesday for what might seem like an unusual act: officially designating a National Pi Day. That's Pi as in ...

We still ate all of it. A disappointing pie, after all, is better than no pie at all. National Pie Day — don’t confuse it with March 14, which is National Pi Day — is a time to treat ...