This is all my kata solutions I've made until now

Python, Java, JavaScript and Ruby

• Evaluate mathematical expression (Python)
• Prime streaming NC-17 (Java)

• Calculator (Python)
• Last digit of a huge number (Python, Ruby, C#)
• Make a spiral (Python, Java)
• Prime streaming PG-13 (Python, Java, Ruby)
• The millionth fibonacci kata (Python, Ruby)

• Adding big numbers (JavaScript)
• Human readable duration format (Python, Groovy)
• Next smaller number with same digits (Java)
• ParseInt() reloaded (JavaScript)
• Permutations (Python)
• Range extraction (JavaScript)
• Roman numerals helper (Python)
• Simple fun #159: Middle permutation (Python, Ruby)
• Snail (JavaScript)
• String <-- x --> string (Python)
• Strip comments (JavaScript)
• Sum of intervals (JavaScript)
• Sum strings as numbers (JavaScript)
• Text align justify (JavaScript)
• Rail fence cypher (Ruby)

• Extract the domain name from a URL (Python)
• First non repeating character (Python, JavaScript, Ruby)
• Human readable time (Python)
• Josephus survivor (Python)
• Not very secure (Python)
• Number of trailing zeros of N! (Python)
• Simple pig latin (JavaScript)
• Valid parentheses (Python, Ruby)
• Where my anagrams at? (JavaScript)

• 1/n Cycle (JavaScript)
• Bit counting (JavaScript)
• Build a tower (JavaScript)
• Build a tower advanced (JavaScript)
• Count the smiley faces (Python)
• Create phone number (Python)
• Detect pangrams (JavaScript)
• Does my number look big in this? (Python)
• Dubstep (JavaScript)
• Equal sides of an array (Python)
• Fake website #2 (JavaScript)
• Find the odd int (Python)
• Find the missing letter (Python)
• Find the parity outlayer (JavaScript)
• Find the unique number (JavaScript)
• Format string of names like bart, lisa & maggie (JavaScript)
• Give me a diamond (JavaScript)
• Grouped by commas (Python)
• Hard time bomb (JavaScript)
• Highest scoring words (JavaScript)
• IQ test (JavaScript)
• Is a number prime? (Java)
• Make the deadfish swim (Groovy)
• Mexican wave (Python)
• Multiples of 3 or 5 (Python)
• New cashier does not know about space or shift (Python)
• Replace with alphabet positions (JavaScript)
• Roman numerals decoder (Python)
• Roman numerals encoder (Python)
• Simple encription #1: Alternating split (Python)
• Simple fun #79: Delete a digit (Python)
• Sort the odd (Python)
• Split strings (JavaScript)
• Stop gninnipS My sdroW (JavaScript)
• String transformer (Python)
• Valid braces (JavaScript)
• Validate credit card number (Python)
• Weird string case (Python)
• Your order please (JavaScript)

• Automorphic number series #6 (Python)
• Baby shark lyrics generator (Python)
• Binary additions (JavaScript)
• Coding in 3 min: toLoverCase() (Python)
• Complementary DNA (JavaScript)
• Credit card mask (Python)
• Disemvowel trolls (Python)
• Exes and ohs (JavaScript)
• Extra perfect number (JavaScript)
• Friend or foe? (JavaScript)
• Get the middle character (JavaScript)
• Highest and lowest (JavaScript)
• How many arguments? (Python)
• Mumbling (JavaScript)
• Nice array (Python)
• Ones and zeros (Python)
• Ordered count of characters (Groovy)
• Regex validate pin code (Java)
• Row weights (JavaScript)
• Shortest word (JavaScript)
• Simple Fun #37: House Numbers Sum (Groovy)
• Simple fun #152: Invite more women (Python)
• Special number series #5 (Python)
• Vowel count (JavaScript)

• Bin to decimal (Python)
• Century from year (JavaScript)
• Compare with margin (Ruby)
• Convert boolean to string (Python)
• Enumerable magic #6 (Ruby)
• Enumerable magic #14 (Ruby)
• Even or orr (Java)
• Fake binary (Python)
• For UFC fans: Conor McGregor vs George Saint Pierre (Ruby)
• Get ASCII value of character (JavaScript)
• Get character from ASCII value (Python)
• Grasshopper: Messi goals function (JavaScript)
• Grasshopper: Summation (Python)
• Grasshopper: Terminal game combat function (JavaScript)
• Is there a vowel in there? (JavaScript)
• Multiply (Python, Java)
• Name shuffler (Ruby)
• Oposite number (Java)
• Positive (Java)
• Printing array elements with comma delimiters (Python)
• Remove first and last character (Java)
• Return negative (Java)
• Reversed words (Python)
• Rock, paper, scissors (Python)
• Simple multiplication (JavaScript)
• Square(n) sum (Python)
• String repeat (Java)
• Triple trouble (Python)

• toString() reloaded (JavaScript) [REJECTED] {KYU 4}
• RealLife #1: Restaurant menu format (Python) [REJECTED] {KYU 6}

• Paragraph Setting: Align Left (Python) [BETA] {KYU 3}

• Area of a perimeter (JavaScript)
• Basket items (Python)
• Coefficients of a quadratic expression (Python)
• Happy birthday (Java)
• Office Space #2 - Closest Three from Twos (JavaScript)
• Paragraph settings: align left (JavaScript, Python)
• Sum of minimums (JavaScript)
• Sum two arrays (JavaScript)