Easy 2 point
            Medium 4 points
            Hard 6 points
            Ninja 10 points
| Question | Type | Level | Solve | 
|---|---|---|---|
| Write a function to check whether given string is palindrome? | String | Medium | Solve | 
| Write a function to reverse a string? | String | Easy | Solve | 
| Write a function to count the digits of given number? | Number | Medium | Solve | 
| Write a function a square a number? | Number | Easy | Solve | 
| Write a function to find nth fibonacci number? | Number | Medium | Solve | 
| Write a function to convert the string to all lowercase? | String | Medium | Solve | 
| Write a function to count digits in given string? | String | Medium | Solve | 
| Write a function to take power? | Number | Easy | Solve | 
| Write a function that removes all duplicate letters from given string? | String | Hard | Solve | 
| Write a function to check if given two strings are anagrams of each other? | String | Medium | Solve | 
