Win Free Pizza for 3.14 Years from Pizza Hut for National Pi Day

March 14th is a special day for math enthusiasts. It's when the date reads like the beautiful irrational ratio between a circle's circumference to its diameter. 3.141592654... maybe you know even more of these digits.

This year, Pizza Hut is offering an interesting challenge. If you answer three math questions, you get 3.14 years of pizza for free.

Not surprisingly, the questions are not easy.

Written by John H. Conway, a Princeton University math professor, the questions will range from high school to Ph.D. level, so you may need to start cramming now. "Pi may be irrational, but free pizza is anything but," the professor said in a press release.

The questions will go live on Pizza Hut's blog at 8 a.m. ET on Pi Day and people will have until midnight, when they have to put down their pencils and await judgment. It's unclear when that will be, but Pizza Hut says winners have 24 hours to contact the company to claim the prize after they've won.

Here's the fine print, if you need more. 3.14 years of pizza is worth $1,600! But of course, winning is likely a mixed blessing--if you win, you'll probably never want to see another pizza again.