diff --git a/Grpa Week 10/question1.py b/Grpa Week 10/question1.py
index e69de29..af45f26 100644
--- a/Grpa Week 10/question1.py	
+++ b/Grpa Week 10/question1.py	
@@ -0,0 +1,19 @@
+class Calculator:
+    def __init__(self, a, b):
+        self.a = a
+        self.b = b
+
+    def add(self):
+        return self.a + self.b
+
+    def multiply(self):
+        return self.a * self.b
+
+    def subtract(self):
+        return self.a - self.b
+
+    def quotient(self):
+        return self.a // self.b
+
+    def remainder(self):
+        return self.a % self.b
diff --git a/Grpa Week 10/question2.py b/Grpa Week 10/question2.py
index e69de29..35ba22a 100644
--- a/Grpa Week 10/question2.py	
+++ b/Grpa Week 10/question2.py	
@@ -0,0 +1,23 @@
+class StringManipulation:
+    def __init__(self, words):
+        self.words = words
+
+    def total_words(self):
+        return len(self.words)
+
+    def count(self, some_word):
+        return self.words.count(some_word)
+
+    def words_of_length(self, length):
+        return [word for word in self.words if len(word) == length]
+
+    def words_start_with(self, char):
+        return [word for word in self.words if word.startswith(char)]
+
+    def longest_word(self):
+        if not self.words:
+            return ""
+        return max(self.words, key=len)
+
+    def palindromes(self):
+        return [word for word in self.words if word == word[::-1]]
diff --git a/Grpa Week 10/question3.py b/Grpa Week 10/question3.py
index e69de29..5a76e1c 100644
--- a/Grpa Week 10/question3.py	
+++ b/Grpa Week 10/question3.py	
@@ -0,0 +1,26 @@
+class Shape:
+    def __init__(self, name):
+        self.name = name
+        self.area = None
+        self.perimeter = None
+        
+    def display(self):
+        print(f'{self.name} has an area of {self.area} and perimeter of {self.perimeter}')
+
+class Square(Shape):
+    def __init__(self, side):
+        # (2) Call base constructor and set name to "Square"
+        super().__init__("Square")
+        # (3) Assign side to the attribute
+        self.side = side
+        # (4) Call the compute methods
+        self.compute_area()
+        self.compute_perimeter()
+        
+    def compute_area(self):
+        # (5) Compute area and assign to self.area (inherited from Shape)
+        self.area = self.side * self.side
+        
+    def compute_perimeter(self):
+        # (6) Compute perimeter and assign to self.perimeter (inherited from Shape)
+        self.perimeter = 4 * self.side
diff --git a/Grpa Week 10/question4.py b/Grpa Week 10/question4.py
index e69de29..4bd9722 100644
--- a/Grpa Week 10/question4.py	
+++ b/Grpa Week 10/question4.py	
@@ -0,0 +1,24 @@
+class Time:
+    def __init__(self, time):
+        self.time = time
+
+    def seconds_to_minutes(self):
+        mins = self.time // 60
+        secs = self.time % 60
+        return f"{mins} min {secs} sec"
+
+    def seconds_to_hours(self):
+        hours = self.time // 3600
+        remaining_secs = self.time % 3600
+        mins = remaining_secs // 60
+        secs = remaining_secs % 60
+        return f"{hours} hrs {mins} min {secs} sec"
+
+    def seconds_to_days(self):
+        days = self.time // 86400  # 24 * 3600
+        remaining_secs = self.time % 86400
+        hours = remaining_secs // 3600
+        remaining_secs %= 3600
+        mins = remaining_secs // 60
+        secs = remaining_secs % 60
+        return f"{days} days {hours} hrs {mins} min {secs} sec"