12 Days of Christmas
411
Arrows
407
Evil Numbers
833
Evil Numbers (Long)
820
Fibonacci
654
735
Fractions
422
Happy Numbers
565
Leap Years
827
Odious Numbers
564
870
Odious Numbers (Long)
854
Pangram Grep
592
Pernicious Numbers
784
Prime Numbers
430
Quine
901
969
Roman to Arabic
494
561
Time Distance
492