12 Days of Christmas
411
99 Bottles of Beer
502
Abundant Numbers
708
Arabic to Roman
592
Christmas Trees
737
CSS Colors
129
Divisors
886
Emirp Numbers
495
Evil Numbers
801
Fibonacci
934
Fizz Buzz
862
Happy Numbers
547
Leap Years
770
Look and Say
393
Morse Decoder
264
Niven Numbers
799
Odious Numbers
783
Ordinal Numbers
606
Pangram Grep
733
Pascalβs Triangle
508
Pernicious Numbers
686
Prime Numbers
643
Rock-paper-scissors-Spock-lizard
494
Roman to Arabic
457
Spelling Numbers
Tongue-twisters
445
United States
278