Given a number, return the number of closed 'circles' in the base 10 numerical representation.
Note: the number 4 has no circles
8819 -> 5
Interpolating on a string (the ASCII values) is an interesting idea even though the long interpolation string could be reduced by subtracting '0', but at the expense of a "longer" solution.
Find nearest prime number less than input number
Return 'on' or 'off'
03 - Matrix Variables 5
Pig Latin to English Translator
Guess the Coefficients!
Return the first and last character of a string
Check to see if a Sudoku Puzzle is Solved
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