Drills tagged with this skill, unpassed first. Pass them all to mark the skill ready for scenarios.
count_vowels(s) that counts how many vowels are in s (case-insensitive). Vowels are a, e, i, o, u.multiplication_table(n, limit) that returns a list [n*1, n*2, ..., n*limit].fizzbuzz(n) that returns a list of strings 1 through n. Replace multiples of 3 with "Fizz", multiples of 5 with "Buzz", multiples of both with "FizzBuzz". Other numbers are their string form.