@@ -0,0 +1,50 @@
+# Exercise-1
+
+# Predict what double("22") will do. 
+# Then run the code and check. Did it do what you expected? 
+# Why did it return the value it did?
+
+def double(value):
+    return value * 2
+
+#Answer
+#I guess it'll return 2222. That's because any value in quotes is a string, 
+# and when strings are multiplied, they repeat the characters.
+
+def double(value):
+    return value * 2
+
+print("double is:", double("22"))   #double is: 2222
+
+# Yes, It returned 2222 as I predicted.
+# Python's operator "*" when used with a string and a number, repeats this string as "number" times,
+# and it didn't convert the string "22" into number 22.
+
+
+#Exercise-2
+
+def double(number):
+    return number * 3
+
+print(double(10))
+
+
+#Read the above code and write down what the bug is. How would you fix it?
+
+# Answer
+# There are two way to fix it:
+# 1. Change *3 to *2.
+
+def double(number):
+    return number * 2
+
+print(double(10))
+
+# or
+
+# 2. Rename the function to "triple" if we want multiply by 3 - it keeps the logic correct.
+
+def triple(number):
+    return number * 3
+
+print(triple(10))