PI Day Quiz (2025)

Send an email to piday@n_______a.com with the answers.
The third, fourteenth, fifteenth, ninty-second, sixty-fifth, thirty-fifth, eighty-ninth, seventy-ningth, thirty-second, thirty-eighth, forty-sixth, twenty-sixth, forth, thirty-third person who correctly answer at least three questions will get a small prize. (if there are not enough answers, then the lowest places with get a prize - starting with first, second, up to the missing ones. There are 14 prizes in total)


1. Find the next four numbers in world most popular number series ?

3141 5926 5358 9793 2384 6264 3383 2795 0288 4197 1693 9937 5105 8209 7494 4592 ?

2. What is the angle between the hour hand and the minute hand of a clock at 12:30? Answer in radians in terms of PI


3. Who first described the familiar value of Pi which we are considering now?
  1. Euclid
  2. Liu Hui’s
  3. Zu Chongzhi
  4. None of the above



4. If the squares are the same, which box contains the biggest amount of pizza?


Bonus question, just for fun.
Prove that the following two circles have the same amount of blue and the same amount of white.




As always, in addition interesting video and the article.

P.S. Always look at the source of the problem...



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