12 Days of Christmas
506
99 Bottles of Beer
679
Abundant Numbers
Christmas Trees
550
CSS Colors
360280
Divisors
770
Emojify
Evil Numbers
627
Fibonacci
792
Fizz Buzz
841
Leap Years
780
Morse Encoder
367
Niven Numbers
610
Odious Numbers
616
Ordinal Numbers
661
Pangram Grep
766
Tongue-twisters
337
United States