### 12 Days of Christmas

20^{th}

### 99 Bottles of Beer

10^{th}

### Abundant Numbers

### Arabic to Roman

### brainfuck

18^{th}

### Christmas Trees

27^{th}

### CSS Colors

### Cubes

### Diamonds

### Divisors

36^{th}

### Emirp Numbers

18^{th}

### Emojify

### Evil Numbers

16^{th}

### Fibonacci

20^{th}

### Fizz Buzz

8^{th}

### Happy Numbers

19^{th}

### Intersection

### Leap Years

18^{th}

### Levenshtein Distance

### Leyland Numbers

### Lucky Tickets

### Morse Decoder

7^{th}

### Morse Encoder

7^{th}

### Niven Numbers

17^{th}

### Odious Numbers

15^{th}

### Ordinal Numbers

### Pangram Grep

### Pascal’s Triangle

24^{th}

### Pernicious Numbers

22^{nd}

### Poker

### Prime Numbers

49^{th}

### Quine

### Rock-paper-scissors-Spock-lizard

### Roman to Arabic

### Rule 110

### Seven Segment

### Sierpiński Triangle

15^{th}

### Spelling Numbers

### Sudoku

### Ten-pin Bowling

### Tongue-twisters

### United States

### Vampire Numbers

### λ

### π

24^{th}