Kata	8 kyu	7 kyu	6 kyu	5 kyu
Fake Binary
Reverse a Number
Merge two Arrays
Vowel Count
Even or Odd
Mumbling
Highest and Lowest
Digital Root
Shortest Word
Sum of positive
Descending Order
Bit Counting
Create Phone Number
Find The Parity Outlier
Stop gninnipS My sdroW!
Who likes it?
Array.diff
Counting sheep
Remove String Spaces
String repeat
Reversed Strings
Return Negative
Remove First and Last Character
Beginner - Lost Without a Map
Grasshopper - Summation
Sum of odd numbers
Valid Parentheses
Sort the odd
Two to One
Replace With Alphabet Position
Find the unique number
Ones and Zeros
List Filtering
Convert string to camel case
Is a number prime?
Is n divisible by x and y
Regex validate PIN code
Human Readable Time
Friend or Foe
Binary Addition
Basic Mathematical Operations
Century From Year
Square Every Digit
Sum of two lowest positive integers
Get the Middle Character
Playing with digits
Keep Hydrated
Write Number in Expanded Form
Abbreviate a Two Word Name
Sum of the first nth term of Series
Reversed Words
Do I get a bonus?
Is he gonna survive?
Odd or Even?
Extract the domain name from a URL
Reverse words
Exes and Ohs
Growth of a Population
Your order please
IP Validation
Find the stray number
Regex Password Validation
Break camelCase
CamelCase Method
Jaden Casing Strings
Factorial
DNA to RNA Conversion
Find the middle element
Roman Numerals Decoder
Number of trailing zeros of N
Sort array by string length
Four/Seven
Grid index
Split Strings
Reverse Factorials
Valid Phone Number
Data Reverse
Reverser
Summing a numbers digits
Primorial Of a Number
My Languages
Row Weights
Two Oldest Ages
First n Prime Numbers
Maximum Multiple
Sum of Minimums
What century is it?
Are the numbers in order
Count the divisors of a number
Find the capitals
Fix string case
Form The Largest
Sum even numbers
Bit calculator
Prime Numbers
Sum The Strings
Next Prime
Narcissistic Numbers
Initialize my name
Basic Calculator