12 Days of Christmas
99 Bottles of Beer
Abundant Numbers
Arrows
brainfuck
Divisors
Emirp Numbers
Evil Numbers
Forsyth–Edwards Notation
Leap Years
Levenshtein Distance
Morse Decoder
Niven Numbers
Pangram Grep
Pernicious Numbers
Quine
967669866944857
Rock-paper-scissors-Spock-lizard
Van Eck Sequence
π
φ