12 Days of Christmas
65th
99 Bottles of Beer
70th
Arabic to Roman
14th
Christmas Trees
41st
Divisors
47th
Evil Numbers
84th
Fibonacci
87th
Fizz Buzz
180th
Happy Numbers
51st
Leap Years
83rd
Morse Decoder
14th
Morse Encoder
16th
Odious Numbers
68th
Ordinal Numbers
19th
Pangram Grep
48th
Pascalβs Triangle
26th
Pernicious Numbers
47th
Prime Numbers
48th
Rock-paper-scissors-Spock-lizard
17th