| Challenge | Problem | Solution |
|---|---|---|
| Weather Observation Station 5 | Problem | Solution |
| Weather Observation Station 6 | Problem | Solution |
| Weather Observation Station 7 | Problem | Solution |
| Weather Observation Station 8 | Problem | Solution |
| Weather Observation Station 9 | Problem | Solution |
| Weather Observation Station 10 | Problem | Solution |
| Weather Observation Station 11 | Problem | Solution |
| Weather Observation Station 12 | Problem | Solution |
| More than 75 Marks | Problem | Solution |
| Name of Employees | Problem | Solution |
| Salary of Employees | Problem | Solution |
| Full Score | Problem | Solution |
| Type of Triangle | Problem | Solution |
| The PADS | Problem | Solution |
| Japan Population | Problem | Solution |
| Revising Aggregate Sum | Problem | Solution |
| Revising Aggregations - Averages | Problem | Solution |
| Average Population | Problem | Solution |
| Population Density Difference | Problem | Solution |
| The Blunder | Problem | Solution |
| Weather Observation Station 13 | Problem | Solution |
| Weather Observation Station 14 | Problem | Solution |
| Top Earners | Problem | Solution |
| Weather Observation Station 2 | Problem | Solution |
| Weather Observation Station 15 | Problem | Solution |
| Weather Observation Station 16 | Problem | Solution |
| Weather Observation Station 17 | Problem | |
| Revising Aggregations - The Count | (https://www.hackerrank.com/challenges/revising-aggregations-the-count-function/problem) | |
| Population Census | (https://www.hackerrank.com/challenges/asian-population/problem) | |
| African Cities | (https://www.hackerrank.com/challenges/african-cities/problem) | |
| Average Population of Each Continent | (https://www.hackerrank.com/challenges/average-population-of-each-continent/problem) |
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