12 Days of Christmas
511
99 Bottles of Beer
487
Abundant Numbers
638
580
Divisors
705
Emirp Numbers
198
Emojify
287
Fibonacci
621
Fizz Buzz
384
511
640
554
513
729
527
614
286
446
363
619
Foo Fizz Buzz Bar
576
Leap Years
737
Niven Numbers
572
Odious Numbers
573
Ordinal Numbers
537
Pangram Grep
514
Pernicious Numbers
341
Prime Numbers
379
Prime Numbers (Long)
469
Tongue-twisters
323
United States