12 Days of Christmas
168
99 Bottles of Beer
333
Abundant Numbers
336
Christmas Trees
403
Day of Week
500
Diamonds
392
Divisors
538
Emirp Numbers
305
Evil Numbers
331
Fibonacci
479
Fizz Buzz
761
Foo Fizz Buzz Bar
440
Leap Years
373
Niven Numbers
480
Odious Numbers
307
Pernicious Numbers
182
Prime Numbers
666
Tongue-twisters
581
United States
163