diff --git a/problem1 b/problem1
new file mode 100644
index 0000000..7aaaf5f
--- /dev/null
+++ b/problem1
@@ -0,0 +1,11 @@
+import pandas as pd
+
+def nth_highest_salary(employee: pd.DataFrame, N: int) -> pd.DataFrame:
+    employee = employee.drop_duplicates('salary')
+    employee['rank'] = employee['salary'].rank(method='dense', ascending=False)
+    result = employee[employee['rank'] == N][['salary']]
+    
+    if result.empty:
+        return pd.DataFrame({f'getNthHighestSalary({N})': [None]})
+    else:
+        return pd.DataFrame({f'getNthHighestSalary({N})': [result.iloc[0]['salary']]})
diff --git a/problem2 b/problem2
new file mode 100644
index 0000000..d37bb78
--- /dev/null
+++ b/problem2
@@ -0,0 +1,12 @@
+import pandas as pd
+
+def second_highest_salary(employee: pd.DataFrame) -> pd.DataFrame:
+    secondSalary = employee.drop_duplicates('salary')
+    secondSalary['rank'] = secondSalary['salary'].rank(method='dense', ascending=False)
+    if len(secondSalary) >=2:
+        result = secondSalary[secondSalary['rank'] == 2][['salary']]
+
+    else: 
+        result = pd.DataFrame({'SecondHighestSalary': [None]})
+    return result.rename(columns={'salary': 'SecondHighestSalary'})
+