12 Days of Christmas
689
Abundant Numbers
798
Abundant Numbers (Long)
904
Arithmetic Numbers
892
Divisors
770
Evil Numbers
574
Evil Numbers (Long)
572
Fibonacci
458
Fizz Buzz
403
Foo Fizz Buzz Bar
847
Leap Years
785
Medal Tally
523
Niven Numbers
481
Odious Numbers
573
Odious Numbers (Long)
564
Pernicious Numbers
438
Pernicious Numbers (Long)
527
Prime Numbers
673
Tongue-twisters
591