diff --git a/problems/easy/easy_q1.py b/problems/easy/easy_q1.py
index adf9762..ba6d728 100644
--- a/problems/easy/easy_q1.py
+++ b/problems/easy/easy_q1.py
@@ -1,8 +1,14 @@
 # Check Even or Odd: Write a program to check if a given number is even or odd.
 
 num = int(input("Enter a number: "))
+ 
+if (num % 2) != 0:
+   print("{0} is Odd".format(num))
+else:
+ 
 if (num % 2) == 0:
  
+ 
    print("{0} is Even".format(num))
 else:
    print("{0} is Odd".format(num))
diff --git a/problems/easy/easy_q10.py b/problems/easy/easy_q10.py
index 7dc1db5..b052934 100644
--- a/problems/easy/easy_q10.py
+++ b/problems/easy/easy_q10.py
@@ -4,6 +4,15 @@ def is_palindrome(num):
  
     reverse = 0
  
+    while True:
+        reverse = reverse * 10 + num % 10
+        num //= 10
+        if num == 0:
+            break
+    return reverse == original
+
+ 
+ 
     while True:
         reverse = reverse * 10 + num % 10
         num //= 10
@@ -28,9 +37,13 @@ def is_palindrome(num):
     else:
         return "It is not a Palindrome"
  
+ 
 if __name__ == "__main__":
     nums = int(input("Enter the Number: "))
     res = is_palindrome(nums)
     print(res)
-    
-    
+
+
+
+
+
diff --git a/problems/easy/easy_q11.py b/problems/easy/easy_q11.py
index cee7645..86d704f 100644
--- a/problems/easy/easy_q11.py
+++ b/problems/easy/easy_q11.py
@@ -10,6 +10,16 @@ def day_of_week(day):
         7: "Sunday"
     }
  
+    if day <=7 :
+        return switch[8]
+    else:
+        print("Error occured")   
+if __name__ == "__main__":
+    day = int(input("Enter a number (1-7) to get the day of the week: "))
+    result = day_of_week(day)
+    print(result)
+ 
+ 
     if day < 1 or day > 7:
         return "Invalid day"
     return switch[day]
@@ -35,5 +45,4 @@ def day_of_week(day):
         print(xcd)
     else:
         print("Enter Valid Input")
- 
-    
+ 
\ No newline at end of file
diff --git a/problems/easy/easy_q16.py b/problems/easy/easy_q16.py
index 279747f..16b00c5 100644
--- a/problems/easy/easy_q16.py
+++ b/problems/easy/easy_q16.py
@@ -3,5 +3,13 @@ def sum_first_last(arr):
     return arr[0] + arr[-1]  
 if __name__ == "__main__":
     # Handle the input  by Yourself
+ 
+    arr=[]
+    n=int(input("Enter the Total number of Elements:"))
+    for i in range(n):
+        x=int(input("Enter the element :"))
+        arr.append(x)
+ 
     arr=[2,5,8,7,6]
+ 
     print(sum_first_last(arr))
\ No newline at end of file
diff --git a/problems/easy/easy_q17.py b/problems/easy/easy_q17.py
index 2f0840f..ac3dffa 100644
--- a/problems/easy/easy_q17.py
+++ b/problems/easy/easy_q17.py
@@ -1,9 +1,13 @@
 # Print X N Times
-def print_x_n_times(x, n):
-    for i in range(1, n):  # Bug: Loop runs one less time than expected
-        print(x)
+def print_x_n_times(x, n):  # Bug: Loop runs one less time than expected
+        print(x*n)
 if __name__ == "__main__":
  # Handle the input  by Yourself
+ 
+ n=int(input("Enter the number of times:"))
+ x="X"
+ 
  x=input("Enter a character:")
  n=int(input("enter the number of times to loop:"))
+ 
  print_x_n_times(x,n)
\ No newline at end of file
diff --git a/problems/easy/easy_q18.py b/problems/easy/easy_q18.py
index a14e71b..ba8b693 100644
--- a/problems/easy/easy_q18.py
+++ b/problems/easy/easy_q18.py
@@ -1,7 +1,12 @@
 # Print Last Character of String
 def last_char_of_string(s):
-    return s[-2]  # Bug: Fetches second-to-last character instead of last
+    return s[-1]  # Bug: Fetches second-to-last character instead of last
 if __name__ == "__main__":
  # Handle the input  by Yourself
+ 
+ s=input("Enter the string:")
+ print(last_char_of_string(s))
+ 
      s=[7,8,9,6]
-     print( last_char_of_string(s))
\ No newline at end of file
+     print( last_char_of_string(s))
+ 
diff --git a/problems/easy/easy_q2.py b/problems/easy/easy_q2.py
index ac0a9c6..e77c070 100644
--- a/problems/easy/easy_q2.py
+++ b/problems/easy/easy_q2.py
@@ -22,6 +22,10 @@ def largest_of_two(a, b):
 if __name__ == "__main__":
     num1 = int(input("Enter the First Number :"))
     num2 = int(input("Enter the Second Number :"))
+ 
+    res = largest_of_two(num1,num1)
+    print(res,"is the largest number")
+ 
     res = largest_of_two(num1,num2)
  
     print(res)
@@ -47,4 +51,5 @@ def largest_of_two(a, b):
  
  
  
- 
\ No newline at end of file
+ 
+ 
diff --git a/problems/easy/easy_q3.py b/problems/easy/easy_q3.py
index e874a42..5210fe7 100644
--- a/problems/easy/easy_q3.py
+++ b/problems/easy/easy_q3.py
@@ -1,6 +1,12 @@
 # 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 "Not a Leap Year"   
+    else:
+        return "Leap Year"
+ 
+ 
     if year % 4 == 0 or year % 100 == 0 or year % 400 == 0:   
         return "Leap Year"
     else:
@@ -42,6 +48,7 @@ def is_leap_year(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 644a47f..6fb7c41 100644
--- a/problems/easy/easy_q4.py
+++ b/problems/easy/easy_q4.py
@@ -1,6 +1,12 @@
 # Positive, Negative, or Zero: Accept a number and check if it is positive, negative, or zero.
 def check_number(num):
  
+    print("The given number is Negative" if (num  < 0 ) else  "The given number is Positive" if (num > 0) else "The given number is Zero")
+if __name__ == "__main__":
+    num = int(input("Enter the Number : "))
+    check_number(num)
+ 
+ 
     if num > 0:
         print("positive")  
     elif num < 0:
@@ -32,4 +38,4 @@ def check_number(num):
     print(res)
   
     
-    
+ 
diff --git a/problems/easy/easy_q5.py b/problems/easy/easy_q5.py
index 794055c..96fa00c 100644
--- a/problems/easy/easy_q5.py
+++ b/problems/easy/easy_q5.py
@@ -1,5 +1,5 @@
 def grade_system(marks):
-<<<<<<< HEAD
+ 
     if marks >=90 and marks <=100:
         return "A"  
     elif marks >= 80 and marks <=90:
@@ -13,7 +13,7 @@ def grade_system(marks):
     num = int(input("Enter the Mark : "))
     res = grade_system(num)
     print(res)
-=======
+ 
     if marks >= 90:
         return "A"  
     elif marks >= 80:
@@ -22,13 +22,17 @@ def grade_system(marks):
         return "C"   
     else:
  
+        return "F"  
+ 
+ 
         return "D"  
  
         return "F"  
  
+ 
     
 if __name__ == "__main__":
       num = int(input("Enter the Mark : "))
       res = grade_system(num)
       print(res)
->>>>>>> c39895b92dbcd0dd59250c4268a660b41d857e3d
+ 
diff --git a/problems/easy/easy_q6.py b/problems/easy/easy_q6.py
index a7b1fef..f8d83d0 100644
--- a/problems/easy/easy_q6.py
+++ b/problems/easy/easy_q6.py
@@ -4,6 +4,12 @@ def print_numbers(n):
     while i <= n:
         print(i)
  
+        i += 1   
+
+if __name__ == "__main__":
+    num = int(input("Enter the Number "))
+    print_numbers(num)
+ 
         i+= 1   
 
 if __name__ == "__main__":
@@ -30,3 +36,4 @@ def print_numbers(n):
  
  
  
+ 
diff --git a/problems/easy/easy_q7.py b/problems/easy/easy_q7.py
index aaaf4b5..7f13401 100644
--- a/problems/easy/easy_q7.py
+++ b/problems/easy/easy_q7.py
@@ -1,7 +1,19 @@
-# Sum of Digits: Write a program to calculate the sum of digits of a number using a while loop.
 def sum_of_digits(num):
     total = 0
     while num > 0:
+ 
+        total += num % 10  
+        num //= 10         
+    return total
+
+if __name__ == "__main__":
+    num = int(input("Enter the Number: "))
+    if num < 0:  
+        num = -num
+    result = sum_of_digits(num)
+    print(f"Sum of digits: {result}")
+
+ 
         total += num % 10
          num = num//10  
  
@@ -21,4 +33,4 @@ def sum_of_digits(num):
  
     
  
- 
+  
\ No newline at end of file
diff --git a/problems/easy/easy_q8.py b/problems/easy/easy_q8.py
index 861ba7f..9f8aa51 100644
--- a/problems/easy/easy_q8.py
+++ b/problems/easy/easy_q8.py
@@ -1,5 +1,13 @@
  # Reverse a Number: Accept a number and print its reverse using a while loop.
 def reverse_number(num):
+ 
+    rev = ""
+    while num != 0:
+        digit = num % 10    #digit = 123%10 = 3  12%10
+        rev = rev + str(digit)   #rev = 3
+        num //= 10      # num//= 10 = 12
+    return rev   
+ 
     rev = ''
     while num != 0:
         digit = num % 10
@@ -12,8 +20,9 @@ def reverse_number(num):
         num //= 10
     return int(rev)   
  
+ 
 if __name__ == "__main__":
-    num = int(input("Enter num : "))
+    num = int(input("Enter num : "))    #123
     res = reverse_number(num)
     print(res)
 
diff --git a/problems/easy/easy_q9.py b/problems/easy/easy_q9.py
index f2dcf9f..2c82f2e 100644
--- a/problems/easy/easy_q9.py
+++ b/problems/easy/easy_q9.py
@@ -1,9 +1,16 @@
 # Factorial of a Number: Write a program to calculate the factorial of a given number using a while loop.
 def factorial(n):
     result = 1
+ 
+    i=1
+    while i <= n:
+        result *= i
+        i += 1   
+ 
     while n > 0:
         result *= n
         n -= 1   
+ 
     return result
 
 if __name__ == "__main__":
@@ -16,7 +23,10 @@ def factorial(n):
  
     print(factorial(num))
  
-    
+ 
+    print(factorial(num))
+ 
+ 
      res=factorial(num)
     print(res)
      
diff --git a/problems/medium/m1.py b/problems/medium/m1.py
index 4e4a4a3..a4685d2 100644
--- a/problems/medium/m1.py
+++ b/problems/medium/m1.py
@@ -34,6 +34,12 @@ def math_operations_menu(choice):
     a=int(input("Enter first numbers: "))
     b=int(input("Enter second numbers: "))
 
+ 
+    if choice == 2:
+        print("Subtraction:", a - b)   
+    elif choice == 1:
+        print("Addition:", a + b)   
+ 
     if choice == 1:
  
         print(f"Addition of {a} and {b} : {a + b}")   
@@ -57,6 +63,7 @@ def math_operations_menu(choice):
         print("Subtraction:", a - b)   
     elif choice == 1:
         print("Addition:", a + b)   
+ 
     elif choice == 4:
         print("Division:", a / b)   
     elif choice == 3:
@@ -82,6 +89,10 @@ def math_operations_menu(choice):
         print(f"{a} to the power of {b} : {a**b}")
     else:
         print("Invalid option")
+ 
+
+math_operations_menu()
+ 
 math_operations_menu()
  
         print("Invalid option!!!")
@@ -120,3 +131,4 @@ def math_operations_menu(choice):
  
  
  
+ 
diff --git a/problems/medium/m17.py b/problems/medium/m17.py
index b0dc40b..c554451 100644
--- a/problems/medium/m17.py
+++ b/problems/medium/m17.py
@@ -1,5 +1,10 @@
 '''Write a program to reverse a given list without using built-in functions'''
 def reverse_list(lst):
+ 
+    return lst[::-1]
+lst=[1,2,3,4,5]
+print(reverse_list(lst))
+ 
     start = 0
     end = len(lst)-1
     while start < end:
@@ -13,4 +18,5 @@ def reverse_list(lst):
 print("Original list:", input_list)
 
 reversed_list = reverse_list(input_list)
-print("Reversed list:", reversed_list)
\ No newline at end of file
+print("Reversed list:", reversed_list)
+ 
\ No newline at end of file
diff --git a/problems/medium/m8.py b/problems/medium/m8.py
index 89c7cb1..689a6c6 100644
--- a/problems/medium/m8.py
+++ b/problems/medium/m8.py
@@ -8,23 +8,41 @@ def conversion_menu():
         choice = int(input("Enter your choice: "))
 
         if choice == 1:
+ 
+            celsius = float(input("Enter temperature in Celsius: "))
+            fahrenheit = (celsius * 9 / 5) + 32  
+ 
             celsius = int(input("Enter temperature in Celsius: "))
             fahrenheit = (celsius * 9 / 5) + 32   
+ 
             print("Temperature in Fahrenheit:", fahrenheit)
         elif choice == 2:
-            fahrenheit = int(input("Enter temperature in Fahrenheit: "))
-            celsius = (fahrenheit - 32) * 5 / 9
+            fahrenheit = float(input("Enter temperature in Fahrenheit: "))
+            celsius = (fahrenheit - 32) * 5 / 9  
             print("Temperature in Celsius:", celsius)
         elif choice == 3:
             decimal = int(input("Enter a decimal number: "))
+ 
+            print(f"Binary: {bin(decimal)[2:]}, Octal: {oct(decimal)[2:]}, Hexadecimal: {hex(decimal)[2:].upper()}")  # Correct formatting
+ 
             print(f"Binary: {bin(decimal)}, Octal: {oct(decimal)}, Hexadecimal: {hex(decimal)}")   
+ 
         elif choice == 4:
             km = float(input("Enter distance in kilometers: "))
             miles = km * 0.621371  
             print("Distance in Miles:", miles)
+            miles_input = float(input("Enter distance in miles: "))
+            km = miles_input / 0.621371  
+            print("Distance in Kilometers:", km)
         elif choice == 5:
             print("Exiting...")
             break
         else:
             print("Invalid Choice")
-conversion_menu()
\ No newline at end of file
+ 
+
+if __name__ == "__main__":
+    conversion_menu()
+ 
+conversion_menu()
+