Take a string of comma separated numbers and print out the sum.

Take a string of numbers and output the one which appears the most.

Given a number, find out if the sum of the digits is even or odd.

Take an invalid JSON string and figure out where the errors are and make it valid.

Take a roman numeral(<1000 in value) and print its corresponding value in the decimal system of numbers.

Take a sentence/phrase in pig latin, translate it to English.

Take three lowercase letters and print out binary.

Start with one Fibonacci sequence number, then calculate more from there.

Given two strings of equal length, figure out if one is a scramble of the other.

Merge two arrays in a zipper-like fashion.

Given a string with multiple words, find the most common character.