Basic Challenges

Number Reverse

Happy Numbers

Consonant Count

Codeland Username Validation

Equivalent Keypresses

Different Cases

FizzBuzz

String Changes

Group Totals

Moving Median

Star Rating

Command Line

Remove Brackets

Palindrome Swapper

String Periods

Serial Number

GCF

Element Merger

One Decremented

String Merge

Sum Multiplier

Find Intersection

Snake Case

Simple Evens

Camel Case

Questions Marks

Distinct Characters

Largest Four

Number Stream

Closest Enemy II

Vowel Square

Closest Enemy

Triangle Row

Time Difference

Alphabet Searching

Three Numbers

Scale Balancing

Correct Path

Three Sum

Palindrome Creator

Product Digits

Power Set Count

Bitwise Two

Two Sum

Nonrepeating Character

Largest Pair

Next Palindrome

Binary Reversal

Array Matching

Wave Sorting

Other Products

Bitwise One

Rectangle Area

Hamming Distance

Superincreasing

Overlapping Ranges

Changing Sequence

Off Line Minimum

Multiplicative Persistence

Additive Persistence

Powers of Two

Third Greatest

Number Addition

Swap Case

Dash Insert

Mean Mode

Counting Minutes I

Division Stringified

Second GreatLow

Letter Count I

Array Addition I

Arith Geo

Palindrome

Ex Oh

Word Count

Upper or Lower Case

Amplify the Multiples of Four

Index Multiplier

Four Passengers and a Driver

Lexicographically First and Last

Automorphic Numbers

Scrabble Hand

Nth Smallest Integer

Halve and Halve Again

Is One List a Subset of Another?

Check for Anagrams

True Ones, False Zeros

Bitwise Operations

Typing Game

Find the Mean of All Digits

Total Volume of All Boxes

Transform into a List with No Duplicates

Count Palindrome Numbers in a Range

Travelling Salesman Problem

Square Every Digit

Is the Number Symmetrical?

Purge and Organize

Is the Word an Isogram?

Secret Society

Simon Says

List Operation

Chat Room Status

Compound Interest

ATM PIN Code Validation

Card Counting (BlackJack)

Clone a List

Folding a Piece of Paper

Moving to the End

Repeating Letters

Recursion: Factorials

Characters in Shapes

Unpacking Lists

The Reverser!

Return the Index of All Capital Letters

Even Number Generator

Filter Strings from Array

Add the Index

Probabilities (Part 1)

Triangular Number Sequence

Find the Missing Number

Stand in Line

Filter out Strings from an Array

Hamming Distance

Find the Odd Integer

Xs and Os, Nobody Knows

Hiding the Card Number

Vowel Replacer

Correct Inequality Signs

Sum of Evenly Divisible Numbers from a Range

Find ASCII Charcode of Inverse Case Character

How Many Vowels?

Count Ones in Binary Representation of Integer

Pythagorean Triplet

War of Numbers

Is it Time for Milk and Cookies?

Default Mood

Return the Factorial

Calculating Damage

Basic Calculator

End Corona!

Sum of Resistance in Series Circuits

Curzon Numbers

Circle or Square

Radians to Degrees

Find the Discount

Stuttering Function

The Farm Problem

Less Than 100?

Return Something to Me!

Return the Remainder from Two Numbers

Maximum Edge of a Triangle

Convert Hours into Seconds

Convert Age to Days

Area of a Triangle

Sum of Cubes

Missing Third Angle

Leap Year Function ⌚

Find Out the Leap Year

Calculate Using String Operation

Area of a Rectangle

On/Off Switches

Miserable Parody of a Calculator

Multiple of 100

Football Points

Return the Sum of Two Numbers

Vowel Count

AB Check

Alphabet Soup

Check Nums

Simple Symbols

Letter Capitalize

Simple Adding

Letter Changes

Longest Word

First Reverse