12 Days of Christmas
59th
99 Bottles of Beer
66th
Arabic to Roman
13th
Christmas Trees
40th
Divisors
47th
Evil Numbers
84th
Fibonacci
87th
Fizz Buzz
179th
Happy Numbers
51st
Leap Years
81st
Morse Decoder
13th
Morse Encoder
15th
Odious Numbers
68th
Ordinal Numbers
18th
Pangram Grep
47th
Pascalβs Triangle
26th
Pernicious Numbers
44th
Prime Numbers
45th
Rock-paper-scissors-Spock-lizard
13th