12 Days of Christmas
69th
99 Bottles of Beer
74th
Arabic to Roman
15th
Christmas Trees
42nd
Divisors
51st
Evil Numbers
89th
Fibonacci
103rd
Fizz Buzz
189th
Happy Numbers
56th
Leap Years
94th
Morse Decoder
14th
Morse Encoder
17th
Odious Numbers
75th
Ordinal Numbers
21st
Pangram Grep
54th
Pascal’s Triangle
27th
Pernicious Numbers
52nd
Prime Numbers
57th
Rock-paper-scissors-Spock-lizard
17th