12 Days of Christmas
874
99 Bottles of Beer
878
Abundant Numbers
734
Arabic to Roman
832
Christmas Trees
842
CSS Colors
294
Divisors
930
Emirp Numbers
601
Evil Numbers
800
Fibonacci
932
Fizz Buzz
941
Happy Numbers
702
Leap Years
768
Look and Say
480
Morse Decoder
379
Niven Numbers
795
Odious Numbers
781
Ordinal Numbers
734
Pangram Grep
861
Pascal’s Triangle
547
Pernicious Numbers
683
Prime Numbers
643
Rock-paper-scissors-Spock-lizard
648
Roman to Arabic
602
Spelling Numbers
Tongue-twisters
787
United States
353