99 Bottles of Beer
558
Abundant Numbers
273
Arrows
447
CSS Colors
276
Divisors
639
Emirp Numbers
450
Evil Numbers
544
Fizz Buzz
923
Fractions
569
Leap Years
757
Niven Numbers
552
Odious Numbers
551
Pangram Grep
550
Prime Numbers
635
Rock-paper-scissors-Spock-lizard
666
United States