12 Days of Christmas
51st99 Bottles of Beer
57thAbundant Numbers
42ndArabic to Roman
23rdChristmas Trees
52ndCSS Colors
48thCubes
18thDiamonds
28thDivisors
60thEvil Numbers
38thEvil Numbers (Long)
24thFibonacci
100thFizz Buzz
178thHappy Numbers
24thLeap Years
79thLook and Say
18thOdious Numbers
42ndPangram Grep
35thTongue-twisters
27th