12 Days of Christmas
405
99 Bottles of Beer
502
Abundant Numbers
706
Arabic to Roman
592
Christmas Trees
734
CSS Colors
129
Divisors
865
Emirp Numbers
494
Evil Numbers
800
Fibonacci
932
Fizz Buzz
860
Happy Numbers
545
Leap Years
768
Look and Say
390
Morse Decoder
262
Niven Numbers
795
Odious Numbers
781
Ordinal Numbers
597
Pangram Grep
730
Pascal’s Triangle
506
Pernicious Numbers
683
Prime Numbers
643
Rock-paper-scissors-Spock-lizard
494
Roman to Arabic
455
Spelling Numbers
Tongue-twisters
439
United States
262