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.
Take three lowercase letters and print out binary.
Just take any given string and output it in reverse, pretty easy, right?
Merge two arrays in a zipper-like fashion.
Given two strings of equal length, figure out if one is a scramble of the other.
Given a string with multiple words, return the longest word.
Take a list of integers and print it after sorting it in descending order.
