Merge two arrays in a zipper-like fashion.

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

Take three lowercase letters and print out binary.

Given a string with multiple words, return the longest word.

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

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

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.

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

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.