NicoAdams

12 Days of Christmas

99 Bottles of Beer

Abundant Numbers

Arabic to Roman

Arrows

Christmas Trees

Diamonds

Divisors

Evil Numbers

Fibonacci

Fizz Buzz

Fractions

Intersection

Kolakoski Sequence

Leap Years

Leyland Numbers

Look and Say

Morse Decoder

Odious Numbers

Prime Numbers

Rock-paper-scissors-Spock-lizard

Roman to Arabic

Rule 110

Seven Segment