Christmas Pi
When symbol-minded folks decide to come up with some math crackers in the form of π-related quickies and trickies for Christmas to enliven the mood of math geeks, who couldn’t wait to go back to school to indulge themselves in some creative problem solving.
Moonlighting school math teachers in Singapore have been pressured by some owners of tuition or enrichment math centers to come up with at least twenty-five brain-unfriendly Christmas pi questions to meet the mathematical needs and wants of their restless, bored students.