diff --git a/08_Day_Objects/08_day_starter/scripts/main.js b/08_Day_Objects/08_day_starter/scripts/main.js
index c6045c8..0f98f3d 100644
--- a/08_Day_Objects/08_day_starter/scripts/main.js
+++ b/08_Day_Objects/08_day_starter/scripts/main.js
@@ -1,2 +1,369 @@
 console.log(countries)
-alert('Open the console and check if the countries has been loaded')
\ No newline at end of file
+//alert('Open the console and check if the countries has been loaded')
+
+//1. Create an empty object called dog
+const dog = new Object()
+
+//2.Print the the dog object on the console
+console.log(dog)
+
+//3.Add name, legs, color, age and bark properties for the dog object. The bark property is a method which return woof woof
+dog.name = 'Tobby'
+dog.legs = 4
+dog.color = 'brown'
+dog.age = 1
+dog.bark = function(){
+  return 'woof woof' 
+}
+console.log(dog)
+
+//4.Get name, legs, color, age and bark value from the dog object
+const entries = Object.values(dog)
+console.log(entries)
+
+//5.Set new properties the dog object: breed, getDogInfo
+dog.breed = 'mix'
+dog.getDogInfo = function(){
+  return `${this.name} ${this.color} ${this.breed}`
+}
+console.log(dog.getDogInfo())
+console.log(dog)
+
+// Exercises: Level 2
+
+//1.Find the person who has many skills in the users object.
+const users = {
+  Alex: {
+    email: 'alex@alex.com',
+    skills: ['HTML', 'CSS', 'JavaScript'],
+    age: 20,
+    isLoggedIn: false,
+    points: 30
+  },
+  Asab: {
+    email: 'asab@asab.com',
+    skills: ['HTML', 'CSS', 'JavaScript', 'Redux', 'MongoDB', 'Express', 'React', 'Node'],
+    age: 25,
+    isLoggedIn: false,
+    points: 50
+  },
+  Brook: {
+    email: 'daniel@daniel.com',
+    skills: ['HTML', 'CSS', 'JavaScript', 'React', 'Redux'],
+    age: 30,
+    isLoggedIn: true,
+    points: 50
+  },
+  Daniel: {
+    email: 'daniel@alex.com',
+    skills: ['HTML', 'CSS', 'JavaScript', 'Python'],
+    age: 20,
+    isLoggedIn: false,
+    points: 40
+  },
+  John: {
+    email: 'john@john.com',
+    skills: ['HTML', 'CSS', 'JavaScript', 'React', 'Redux', 'Node.js'],
+    age: 20,
+    isLoggedIn: true,
+    points: 50
+  },
+  Thomas: {
+    email: 'thomas@thomas.com',
+    skills: ['HTML', 'CSS', 'JavaScript', 'React'],
+    age: 20,
+    isLoggedIn: false,
+    points: 40
+  },
+  Paul: {
+    email: 'paul@paul.com',
+    skills: ['HTML', 'CSS', 'JavaScript', 'MongoDB', 'Express', 'React', 'Node'],
+    age: 20,
+    isLoggedIn: false,
+    points: 40
+  }
+}
+console.log(users)
+
+const usersIds = Object.keys(users)
+const userSkills = [];
+for(user in usersIds ){
+  userSkills[user] = users[usersIds[user]].skills.length
+  
+}
+console.log(users[usersIds[user]].skills.length)
+
+const maxUsersSkills = () => {
+console.log(userSkills)
+const max = Math.max(...userSkills)
+  for(user in usersIds){
+  if(userSkills[user]== max)
+  return `User with maximun Skills is ${usersIds[user]} `
+  }
+}; console.log(maxUsersSkills())
+
+ //2.Count logged in users, count users having greater or equal to 50 points from the following object.
+ function countLogsAndPoints () {
+  const userIds = Object.keys(users);
+    let countLoggedIn = 0;
+    let countUserPoints = 0
+   for (user in userIds) {
+    if (users[userIds[user]].isLoggedIn == true) {
+       countLoggedIn++;
+    }
+     if(users[userIds[user]].points >= 50 ){
+       countUserPoints++
+    }
+  }
+  return `Users logged are ${countLoggedIn}, Users points greater or equal to 50 are ${countUserPoints} `
+
+ }; console.log(countLogsAndPoints())
+
+//3. Find people who are MERN stack developer from the users object
+function whoAreMern () {
+  mernDev = []
+  const usersIds =Object.keys(users)
+  for(user in usersIds){
+    usersSkills = users[usersIds[user]].skills
+    if(usersSkills.includes('MongoDB' && 'Express' && 'React' && 'Node')){
+      mernDev.push(usersIds[user])
+    }
+  }; return mernDev.join(', ')
+}; console.log(whoAreMern())
+
+//4. Set your name in the users object without modifying the original users object
+let newUsers = {...users}
+newUsers.Jose = {
+  email: 'jose@gmail.com',
+  skills: ['HTML', 'CSS', 'JavaScript'],
+  age: 30,
+  isLoggedIn: true,
+  points: 50
+}
+console.log(newUsers)
+
+//5. Get all keys or properties of users object
+const entriesNewUsers = Object.entries(users)
+console.log(entriesNewUsers)
+
+//6. Get all the values of users object
+const values =  Object.values(users)
+console.log(values)
+
+//7. Use the countries object to print a country name, capital, populations and languages.
+for (let i = 0; i < countries.length; i++) {
+  let name = countries[i]['name'];
+  let capital = countries[i]['capital'];
+  let population = countries[i]['population'];
+  let languages = countries[i]['languages'];
+  console.log(`${name}, ${capital}, ${population}, ${languages}`);
+}
+
+// Exercises: Level 3
+
+//1. Create an object literal called personAccount. It has firstName, lastName, incomes, expenses properties and it has totalIncome, totalExpense, accountInfo,addIncome, addExpense and accountBalance methods. Incomes is a set of incomes and its description and expenses is a set of incomes and its description.
+const personAccount = {
+  
+  firstName: 'Jane',
+  lastName: 'Doe',
+  incomes: {
+    salary: 5000,
+    onlinecourses: 15000,
+    parttime: 1000
+  },
+  expenses: {
+    groceries: 1500,
+    bills: 3000
+  },
+ 
+  getTotalIncomes(){
+    const incomesFrom = Object.keys(this.incomes);
+    let addIncomes = 0;
+    for (let i = 0; i < incomesFrom.length; i++){
+        addIncomes += this.incomes[incomesFrom[i]]
+    };
+    return addIncomes;
+  },
+  
+  
+
+  getTotalExpenses () {
+    const expensesFrom = Object.values(this.expenses);
+    return expensesFrom.reduce((acc, curr) => acc + curr);
+  }
+
+};
+console.log(personAccount.getTotalIncomes());
+console.log(personAccount.getTotalExpenses());
+
+//2.**** Questions:2, 3 and 4 are based on the following two arrays:users and products ()
+const usersArr = [
+  {
+      _id: 'ab12ex',
+      username: 'Alex',
+      email: 'alex@alex.com',
+      password: '123123',
+      createdAt:'08/01/2020 9:00 AM',
+      isLoggedIn: false
+  },
+  {
+      _id: 'fg12cy',
+      username: 'Asab',
+      email: 'asab@asab.com',
+      password: '123456',
+      createdAt:'08/01/2020 9:30 AM',
+      isLoggedIn: true
+  },
+  {
+      _id: 'zwf8md',
+      username: 'Brook',
+      email: 'brook@brook.com',
+      password: '123111',
+      createdAt:'08/01/2020 9:45 AM',
+      isLoggedIn: true
+  },
+  {
+      _id: 'eefamr',
+      username: 'Martha',
+      email: 'martha@martha.com',
+      password: '123222',
+      createdAt:'08/01/2020 9:50 AM',
+      isLoggedIn: false
+  },
+  {
+      _id: 'ghderc',
+      username: 'Thomas',
+      email: 'thomas@thomas.com',
+      password: '123333',
+      createdAt:'08/01/2020 10:00 AM',
+      isLoggedIn: false
+  }
+  ];
+
+  const products = [
+{
+  _id: 'eedfcf',
+  name: 'mobile phone',
+  description: 'Huawei Honor',
+  price: 200,
+  ratings: [
+    { userId: 'fg12cy', rate: 5 },
+    { userId: 'zwf8md', rate: 4.5 }
+  ],
+  likes: []
+},
+{
+  _id: 'aegfal',
+  name: 'Laptop',
+  description: 'MacPro: System Darwin',
+  price: 2500,
+  ratings: [],
+  likes: ['fg12cy']
+},
+{
+  _id: 'hedfcg',
+  name: 'TV',
+  description: 'Smart TV:Procaster',
+  price: 400,
+  ratings: [{ userId: 'fg12cy', rate: 5 }],
+  likes: ['fg12cy']
+}
+]
+
+
+//Imagine you are getting the above users collection from a MongoDB database. a. Create a function called signUp which allows user to add to the collection. If user exists, inform the user that he has already an account.
+//b. Create a function called signIn which allows user to sign in to the application
+
+//let userNameInput = prompt('Enter your first name.')
+
+function signUp() {
+  
+  const usernames = [];
+  for (let i = 0; i < usersArr.length; i++) {
+    usernames.push(usersArr[i].username);
+  }
+  if (usernames.includes(userNameInput)) {
+    console.log(`${userNameInput} already exist.`);
+  } else {
+    signIn();
+  }
+}
+
+function signIn() {
+  const newUser = {};
+  newUser._id = generateId();
+  newUser.username = userNameInput
+  newUser.email = prompt('Enter your email address.');
+  newUser.password = prompt('Set your password.', '6 digits of number'); 
+  newUser.createdAt = generateTime();
+  newUser.isLoggedIn = true;
+  usersArr.push(newUser);
+}
+
+function generateId() {
+  let possible = 'abcdefghijklmnopqrstuvwxyz0123456789';
+  const id = [];
+  for (let i = 0; i < 6; i++) {
+    id.push(possible.charAt(Math.floor(Math.random() * possible.length)));
+  }
+  return id.join('');
+}
+
+const generateTime = () => {
+  const now = new Date()
+  const day = `${(now.getDate())}`.padStart(2,'0');
+  const month = `${(now.getMonth()+1)}`.padStart(2,'0');
+  const year = now.getFullYear();
+  const date = now.getDate();
+  const minutes = now.getMinutes()
+  const hours = now.getHours()
+  return `${day}/${month}/${year}/${hours}:${minutes}`
+ }
+
+//console.log(signUp());
+console.log(usersArr)
+
+/*let userNameInput = "Enteryour firstname".replace(/\s/g, '_')
+console.log(userNameInput)*/
+
+//3.The products array has three elements and each of them has six properties. a. Create a function called rateProduct which rates the product b. Create a function called averageRating which calculate the average rating of a product
+
+//a.
+function rateProduct(name) {
+  for (let i = 0; i < products.length; i++) {
+    if (products[i].name == name) {
+      return products[i].ratings;
+    }
+  }
+}
+
+console.log(rateProduct('mobile phone'));
+
+function averageRating(name) {
+  let ratingArr = rateProduct(name);
+  if (ratingArr.length === 0) {
+    console.log('Ratings not found');
+  } else if (ratingArr.length) {
+    let rateSum = 0;
+    for (let i = 0; i < ratingArr.length; i++) {
+      rateSum += ratingArr[i].rate;
+    }
+    console.log(rateSum / ratingArr.length);
+  }
+}
+
+averageRating('mobile phone');
+averageRating('Laptop')
+averageRating('TV')
+
+//4. Create a function called likeProduct. This function will helps to like to the product if it is not liked and remove like if it was liked.
+/*function currentUser() {
+  let userNameInput = prompt('Enter your first name.');
+  for (let i = 0; i < users.length; i++) {
+    if (users[i].username === userNameInput) {
+      let userId = users[i]._id;
+      return userId;
+    }
+  }
+}*/
+