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

Just take any given string and output it in reverse, pretty easy, right?

Merge two arrays in a zipper-like fashion.

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

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

Take a list of integers and print it after sorting it in descending order.

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