diff --git a/CSharp/hello_world.cs b/CSharp/hello_world.cs
new file mode 100644
index 00000000..b51406c9
--- /dev/null
+++ b/CSharp/hello_world.cs
@@ -0,0 +1,10 @@
+namespace HelloWorld
+{
+    class Hello 
+	{         
+        static void Main(string[] args)
+        {
+            System.Console.WriteLine("Hello World!");
+        }
+    }
+}
diff --git a/Python/leap_year.py b/Python/leap_year.py
new file mode 100644
index 00000000..50a1716b
--- /dev/null
+++ b/Python/leap_year.py
@@ -0,0 +1,10 @@
+year = int(input("Enter a year: "))
+
+if (year % 400 == 0) and (year % 100 == 0):
+    print("{0} is a leap year".format(year))
+
+elif (year % 4 ==0) and (year % 100 != 0):
+    print("{0} is a leap year".format(year))
+
+else:
+    print("{0} is not a leap year".format(year))
diff --git a/Python/odd_even.py b/Python/odd_even.py
new file mode 100644
index 00000000..dbf47163
--- /dev/null
+++ b/Python/odd_even.py
@@ -0,0 +1,5 @@
+num = int(input("Enter a number: "))
+if (num % 2) == 0:
+   print("{0} is Even".format(num))
+else:
+   print("{0} is Odd".format(num))