Easy 2 point
            Medium 4 points
            Hard 6 points
            Ninja 10 points
| Question | Type | Level | Solve | 
|---|---|---|---|
| Write a function to convert meters to kilometers? | Number | Easy | Solve | 
| Write a function to find the smallest prime factor of a number? | Number | Medium | Solve | 
| Write a function to calculate the product of even digits in a number? | Number | Medium | Solve | 
| Write a function to check if a number is a harshad number? | Number | Medium | Solve | 
| Write a function to find the sum of the cubes of the first n natural numbers? | Number | Medium | Solve | 
| Write a function to check if a number is a perfect cube? | Number | Medium | Solve | 
| Write a function to compute the number of prime factors of a number? | Number | Hard | Solve | 
| Write a function to find the next number with the same digits? | Number | Hard | Solve | 
| Write a JavaScript function to remove all newline characters from a string? | String | Medium | Solve | 
| Write a function that finds the longest increasing character sequence ? | String | Medium | Solve |