12 Days of Christmas
411
99 Bottles of Beer
502
Abundant Numbers
708
Arabic to Roman
593
Christmas Trees
738
CSS Colors
129
Divisors
886
Emirp Numbers
496
Evil Numbers
801
Fibonacci
935
Fizz Buzz
862
Happy Numbers
548
Leap Years
770
Look and Say
393
Morse Decoder
265
Niven Numbers
799
Odious Numbers
784
Ordinal Numbers
607
Pangram Grep
734
Pascal’s Triangle
508
Pernicious Numbers
686
Prime Numbers
643
Rock-paper-scissors-Spock-lizard
495
Roman to Arabic
458
Spelling Numbers
Tongue-twisters
440
United States
268