12 Days of Christmas
798
99 Bottles of Beer
714
Abundant Numbers
676
Christmas Trees
574
CSS Colors
175
Divisors
690
Emirp Numbers
349
Evil Numbers
507
Fibonacci
589
Fizz Buzz
789
Foo Fizz Buzz Bar
718
Leap Years
554
Look and Say
330
Niven Numbers
506
Prime Numbers
500
Prime Numbers (Long)
514
Quine
521
Rock-paper-scissors-Spock-lizard
511
Spelling Numbers
409
Tongue-twisters
619
United States
145
π
462