12 Days of Christmas
790
99 Bottles of Beer
709
Abundant Numbers
660
Christmas Trees
558
CSS Colors
165
Divisors
675
Emirp Numbers
338
Evil Numbers
492
Fibonacci
578
Fizz Buzz
782
Foo Fizz Buzz Bar
704
Leap Years
543
Look and Say
318
Niven Numbers
494
Prime Numbers
486
Prime Numbers (Long)
493
Quine
505
Rock-paper-scissors-Spock-lizard
502
Spelling Numbers
384
Tongue-twisters
612
United States
141
π
448