diff --git a/set_1/ex2.py b/set_1/ex2.py
index c538869..c819bf1 100644
--- a/set_1/ex2.py
+++ b/set_1/ex2.py
@@ -1,4 +1,19 @@
-# A program that reads the user input and outputs information about it
+# Write a program that reads the user input and outputs the following pieces of information about it:
+
+# - Does it have only space?
+
+# - Is it a number?
+
+# - Is it alphabetic?
+
+# - Is it alphanumeric?
+
+# - Is it in uppercase?
+
+# - Is it in lowercase?
+
+# - Is it capitalized?
+
 
 user_input = input('Enter something: ')
 
diff --git a/set_1/ex3.py b/set_1/ex3.py
index 5897970..771f408 100644
--- a/set_1/ex3.py
+++ b/set_1/ex3.py
@@ -1,3 +1,6 @@
+
+# Write a program that reads the user input number and outputs a message saying its antecedent and successor.
+
 user_input = int(input('Enter a number: '))
 
 antecedent = user_input - 1
diff --git a/set_1/ex4.py b/set_1/ex4.py
index 6239739..40f9300 100644
--- a/set_1/ex4.py
+++ b/set_1/ex4.py
@@ -1,4 +1,8 @@
 
+# Write a program that reads the user input number and outputs a message saying its double,
+# triple, and square root with at most two decimal digits.
+
+
 user_input = int(input('Enter a number: '))
 
 print(  'The double of {} is {}.'.format(user_input, 2 * user_input)  )
diff --git a/set_1/ex5.py b/set_1/ex5.py
index ec30541..da62b72 100644
--- a/set_1/ex5.py
+++ b/set_1/ex5.py
@@ -1,4 +1,4 @@
-# average of two student grades
+# Write a program that receives two student grades and outputs the average grade.
 
 grade_1 = float(input('Enter the first grade: '))
 
diff --git a/set_1/ex6.py b/set_1/ex6.py
index fbc35f5..26cbd6c 100644
--- a/set_1/ex6.py
+++ b/set_1/ex6.py
@@ -1,3 +1,5 @@
+# Write a program that receives a distance value in meters and outputs a message saying its corresponding values in km, hm, dam, dm, cm, and mm.
+
 meter_distance = float(input('Enter the distance in meters: '))
 
 km_distance = meter_distance / 1000
diff --git a/set_1/list_of_exercises.md b/set_1/list_of_exercises.md
index e69de29..f377f8a 100644
--- a/set_1/list_of_exercises.md
+++ b/set_1/list_of_exercises.md
@@ -0,0 +1,60 @@
+#### Exercise 1
+
+Write a program that reads the user name as an input and outputs a welcome message.
+
+#### Exercise 2
+
+Write a program that reads the user input and outputs the following pieces of information about it:
+
+- Does it have only space?
+
+- Is it a number?
+
+- Is it alphabetic?
+
+- Is it alphanumeric?
+
+- Is it in uppercase?
+
+- Is it in lowercase?
+
+- Is it capitalized?
+
+#### Exercise 3
+
+Write a program that reads the user input number and outputs a message saying its antecedent and successor.
+
+#### Exercise 4
+
+Write a program that reads the user input number and outputs a message saying its double, triple, and square root with at most two decimal digits.
+
+#### Exercise 5
+
+Write a program that receives two student grades and outputs the average grade.
+
+#### Exercise 6
+
+Write a program that receives a distance value in meters and outputs a message saying its corresponding values in km, hm, dam, dm, cm, and mm.
+
+#### Exercise 7
+
+Write a program that receives a number and gives its multiplication table like this:
+
+    ------------
+    3 x 1 = 3
+    3 x 2 = 6
+    3 x 3 = 9
+    3 x 4 = 12
+    3 x 5 = 15
+    3 x 6 = 18
+    3 x 7 = 21
+    3 x 8 = 24
+    3 x 9 = 27
+    3 x 10 = 30
+    ------------
+    
+#### Exercise 8
+
+#### Exercise 9
+
+