12 Days of Christmas
420
353
99 Bottles of Beer
736
355
Abundant Numbers
714
Abundant Numbers (Long)
757
Arabic to Roman
574
Arithmetic Numbers
699
Arrows
307
Card Number Validation
577
Christmas Trees
192
Collatz
747
575
CSS Colors
99
Diamonds
310
144
Divisors
755
Evil Numbers
773
Evil Numbers (Long)
772
700
Fibonacci
900
888
Fizz Buzz
862
Foo Fizz Buzz Bar
461
Fractions
570
Happy Numbers
478
ISBN
612
Niven Numbers
788
707
Number Spiral
223
Odious Numbers
785
712
Odious Numbers (Long)
770
698
Pernicious Numbers
693
Pernicious Numbers (Long)
717
Prime Numbers
633
456
Rock-paper-scissors-Spock-lizard
403
Tongue-twisters
408
π
118
27
152
56