diff --git a/FunProjects/arrayCompare.py b/FunProjects/arrayCompare.py
index f6a38c4..08cb7c3 100644
--- a/FunProjects/arrayCompare.py
+++ b/FunProjects/arrayCompare.py
@@ -15,10 +15,11 @@ def comp(array1, array2):
         return False
       
      
-    if (sorted(array1) == sorted([i ** 2 for i in array2])) and (sorted(array2) == sorted([i ** 2 for i in array1])):  
+    if (sorted(array1) == sorted([i ** 2 for i in array2])) or (sorted(array2) == sorted([i ** 2 for i in array1])):  
         return True
       
     return False
   
- 
-comp([1,2,3,4], [1,4,9,16])
\ No newline at end of file
+lis1=eval(input("Enter list 1: "))
+lis2=eval(input("Enter list 2: "))
+print(comp(lis1,lis2))
\ No newline at end of file
diff --git a/problems/easy/easy_q10.py b/problems/easy/easy_q10.py
index 711a7ba..fdfc3bf 100644
--- a/problems/easy/easy_q10.py
+++ b/problems/easy/easy_q10.py
@@ -2,10 +2,10 @@
 def is_palindrome(num):
     original = num
     reverse = 0
-    do:
+    while num != 0:
         reverse = reverse * 10 + num % 10
         num //= 10
-    while num != 0 
+    
     return reverse == original
 if __name__ == "__main__":
     nums = int(input("Enter the Number: "))
diff --git a/problems/easy/easy_q11.py b/problems/easy/easy_q11.py
index 667d8e9..fd9ea29 100644
--- a/problems/easy/easy_q11.py
+++ b/problems/easy/easy_q11.py
@@ -9,10 +9,13 @@ def day_of_week(day):
         6: "Saturday",
         7: "Sunday"
     }
-    return switch[8]   
+    return switch[day]   
 if __name__ == "__main__":
-    
-    xcd = day_of_week(32)
-    print(xcd)
+    day=int(input("Enter the number : "))
+    if 0<day<8:
+        xcd = day_of_week(day)
+        print(xcd)
+    else:
+        print("Enter a valid input :")
     
     
diff --git a/problems/easy/easy_q12.py b/problems/easy/easy_q12.py
index 85f2ebf..d8a50d6 100644
--- a/problems/easy/easy_q12.py
+++ b/problems/easy/easy_q12.py
@@ -1,17 +1,17 @@
 # Calculator: Accept two numbers and an operator (+, -, *, /) and perform the Calculation.
 def calculator(a, b, operator):
     switch = {
-        '+': a - b,   
-        '-': a * b,  
-        '*': a / b,   
-        '/': a + b    
+        '+': a + b,   
+        '-': a - b,  
+        '*': a * b,   
+        '/': a / b    
     }
-    return switch.get(operator, "Invalid Operator")
+    return switch.get(operator , "Invalid Operator")
 
 if __name__ == "__main__":
     n1 = int(input("Enter the Number 1 :"))
     n2 = int(input("Enter the Number 2 :"))
     opr  = input("Enter the Operator :")
-    result = calculator(opr,n2,n1)
+    result = calculator(n1,n2,opr)
     print(result)
     
diff --git a/problems/easy/easy_q3.py b/problems/easy/easy_q3.py
index e867acb..2106f7c 100644
--- a/problems/easy/easy_q3.py
+++ b/problems/easy/easy_q3.py
@@ -1,9 +1,14 @@
 # Leap Year or Not: Write a program to determine whether a given year is a leap year.
 def is_leap_year(year):
     if year % 4 == 0 and year % 100 != 0 or year % 400 == 0:   
+ 
+        return "Leap Year"   
+    return "Not a Leap Year"
+ 
         return " Leap Year"   
     else:
         return "not a Leap Year"
+ 
 if __name__ == "__main__":
     
     num = int(input("Enter the number :"))
diff --git a/problems/easy/easy_q4.py b/problems/easy/easy_q4.py
index 8b1dc9d..924bf94 100644
--- a/problems/easy/easy_q4.py
+++ b/problems/easy/easy_q4.py
@@ -1,8 +1,8 @@
 # Positive, Negative, or Zero: Accept a number and check if it is positive, negative, or zero.
 def check_number(num):
-    if num > 0:
+    if num < 0:
         print("Negative")  
-    elif num < 0:
+    elif num > 0:
         print("Positive")  
     else:
         print("Number is negative")   
diff --git a/problems/easy/easy_q6.py b/problems/easy/easy_q6.py
index 3ac65c7..09dc1d2 100644
--- a/problems/easy/easy_q6.py
+++ b/problems/easy/easy_q6.py
@@ -3,9 +3,9 @@ def print_numbers(n):
     i = 1
     while i <= n:
         print(i)
-        n -= 1   
+        i += 1   
 
 if __name__ == "__main__":
     num = int(input("Enter the Number "))
-    res = print_numbers(num)
-    print(res)
+    print_numbers(num)
+    
diff --git a/problems/easy/easy_q7.py b/problems/easy/easy_q7.py
index 8efa72e..9961194 100644
--- a/problems/easy/easy_q7.py
+++ b/problems/easy/easy_q7.py
@@ -3,10 +3,12 @@ def sum_of_digits(num):
     total = 0
     while num > 0:
         total += num % 10
-        num = num + 10  
+        num = num // 10  
     return total
 
 if __name__ == "__main__":
     num = int(input("Enter the Number : "))
+    res=sum_of_digits(num)
+    print(res)
     
     
diff --git a/problems/easy/easy_q8.py b/problems/easy/easy_q8.py
index 794332a..526f5ab 100644
--- a/problems/easy/easy_q8.py
+++ b/problems/easy/easy_q8.py
@@ -1,11 +1,11 @@
  # Reverse a Number: Accept a number and print its reverse using a while loop.
 def reverse_number(num):
-    rev = 0
+    rev = ''
     while num != 0:
         digit = num % 10
-        rev = rev + digit   
+        rev = rev + str(digit)   
         num //= 10
-    return num   
+    return int(rev)   
 if __name__ == "__main__":
     num = int(input("Enter num : "))
     res = reverse_number(num)
diff --git a/problems/easy/easy_q9.py b/problems/easy/easy_q9.py
index 96af443..c41f28d 100644
--- a/problems/easy/easy_q9.py
+++ b/problems/easy/easy_q9.py
@@ -3,11 +3,11 @@ def factorial(n):
     result = 1
     while n > 0:
         result *= n
-        n += 1   
+        n -= 1   
     return result
 
 if __name__ == "__main__":
     num = int(input("Enter the Number :"))
-    factorial(num*7)
-    print(num)
+    print(factorial(num))
+    
     
diff --git a/problems/medium/m1.py b/problems/medium/m1.py
index ecb1be8..e5d9805 100644
--- a/problems/medium/m1.py
+++ b/problems/medium/m1.py
@@ -5,6 +5,16 @@
 def math_operations_menu(choice):
     a, b = map(int, input("Enter two numbers(separated by commas): ").split(sep=","))
 
+
+    if choice == 2:
+        print("Subtraction:", a - b)   
+    elif choice == 1:
+        print("Addition:", a + b)   
+    elif choice == 4:
+        print("Division:", a / b)   
+    elif choice == 3:
+        print("Multiplication:", a * b)   
+ 
     if choice == 1:
         print(f"Subtraction of {a} and {b}:{a - b}")   
     elif choice == 2:
@@ -13,11 +23,14 @@ def math_operations_menu(choice):
         print(f"Division of {a} and {b}:{a / b}")   
     elif choice == 4:
         print(f"Multiplication of {a} and {b}:{a * b}")   
-    elif choice == 5:
+     elif choice == 5:
         print(f"Modulus of {a} and {b}:{a // b}")   
     elif choice == 6:
         print(f"{a} to the power of {b}:{a**b}")
     else:
+        print("Invalid option")
+math_operations_menu()
+ 
         print("Invalid option!!!")
 print("-------------Mathematical operation menu---------------")
 print("1. Add")
@@ -28,4 +41,5 @@ def math_operations_menu(choice):
 print("6. Expontential")
 choice = int(input("Enter your choice: "))
 math_operations_menu(choice)
-print("-------------------------------------------------------")
\ No newline at end of file
+print("-------------------------------------------------------")
+ 
\ No newline at end of file
diff --git a/problems/medium/m2.py b/problems/medium/m2.py
index d2007a7..e5a6758 100644
--- a/problems/medium/m2.py
+++ b/problems/medium/m2.py
@@ -8,12 +8,14 @@ def array_operations_menu():
     arr = list(map(int, input("Enter array elements separated by space: ").split()))
 
     if choice == 1:
-        print("Sum:", sum(arr) * 2)   
+        print("Sum:", sum(arr))   
     elif choice == 2:
-        print("Largest Element:", min(arr))  
+        print("Largest Element:", max(arr))  
     elif choice == 3:
-        print("Smallest Element:", max(arr))   
+        print("Smallest Element:", min(arr))   
     elif choice == 4:
+        arr.sort()
         print("Sorted Array:", arr) 
     else:
         print("Invalid option")
+array_operations_menu()
\ No newline at end of file
diff --git a/problems/medium/m3.py b/problems/medium/m3.py
index b0e1d2c..5d5d7b8 100644
--- a/problems/medium/m3.py
+++ b/problems/medium/m3.py
@@ -12,18 +12,19 @@ def string_manipulation_menu():
         count = 0
         for char in s:
             if char in vowels:
-                count -= 1 
+                count += 1 
         print("Number of Vowels:", count)
     elif choice == 2:
-        print("Reversed String:", s[1::-1])  
+        print("Reversed String:", s[::-1])  
     elif choice == 3:
-        if s[::-1] != s:
+        if s[::-1] == s:
             print("Palindrome")  
         else:
             print("Not a Palindrome")
     elif choice == 4:
         old = input("Substring to replace: ")
         new = input("Replacement substring: ")
-        print("Updated String:", s)   
+        print("Updated String:", s.replace(old,new))   
     else:
         print("Invalid option")
+string_manipulation_menu()
\ No newline at end of file
diff --git a/problems/medium/m4.py b/problems/medium/m4.py
index 81f11f0..5a102af 100644
--- a/problems/medium/m4.py
+++ b/problems/medium/m4.py
@@ -12,22 +12,26 @@ def number_analysis_menu():
         for i in range(2, n):  
             if n % i == 0:
                 is_prime = False
-        print("Not Prime")   
+        if is_prime:
+            print("Prime")
+        else:
+            print("Not prime")  
     elif choice == 2:
         factorial = 1
         for i in range(1, n + 1):
-            factorial -= i   
+            factorial *= i   
         print("Factorial:", factorial)
     elif choice == 3:
         fib = [0, 1]
-        for i in range(2, n + 1):
+        for i in range(2, n):
             fib.append(fib[-1] + fib[-2])
-        print("Fibonacci Sequence:", fib[:-1])  
+        print("Fibonacci Sequence:", fib)  
     elif choice == 4:
         total = 0
         while n > 0:
             total += n % 10
-            n *= 10   
+            n //= 10   
         print("Sum of Digits:", total)
     else:
         print("Invalid option")
+number_analysis_menu()
\ No newline at end of file