diff --git a/main.js b/main.js
index 6fea64c..218be2d 100644
--- a/main.js
+++ b/main.js
@@ -4,6 +4,180 @@ function main () {
   console.log('ei')
   // your code goes here.
 
+  //Exercise 1
+
+  let penguin1 = {
+    name: 'Whiteblack',
+    origin: 'Whiteblack the Penguin Sees the World',
+    author: 'H. A. Rey',
+  };
+
+  console.log("Hello, I'm a penguin and my name is " + penguin1.name);
+
+  penguin1.canFly = false;
+
+  penguin1.chirp = function () {
+    console.log("CHIRP CHIRP! Is this what penguins sound like?");
+  };
+  
+  penguin1.sayHello = function () {
+    console.log("Hello, I'm a penguin and my name is " + this.name);
+  }
+
+  penguin1.sayHello();
+
+  penguin1.name = 'Penguin McPenguinFace';
+  penguin1.sayHello();
+
+  penguin1.fly = function () {
+    if (this.canFly === true) {
+      console.log("I can fly!");
+    } else if (this.canFly === false) {
+      console.log("No flying for me!");
+    }
+  }
+
+  penguin1.fly();
+
+  penguin1.canFly = true;
+
+  penguin1.fly();
+
+  for (const key in penguin1) {
+    console.log(key);
+  }
+
+  for (const value in penguin1) {
+    console.log(penguin1[value]);
+  }
+
+  //Exercise 2
+
+  penguin1.favoriteFood = ['fish', 'more fish', 'a lot of fish'];
+
+  console.log(penguin1.favoriteFood[1]);
+
+  penguin1.firstFavoriteFood = penguin1.favoriteFood[0];
+
+  penguin1.favoriteFood.push('a big fish');
+
+  console.log(penguin1.favoriteFood.length);
+
+  penguin1.favoriteFood[3] = 'pineapples';
+
+  penguin1.lastFavFood = function () {
+    console.log(penguin1.favoriteFood[(penguin1.favoriteFood.length - 1)]);
+  }
+
+  for (let i = 0; i < penguin1.favoriteFood.length; i++) {
+    console.log(penguin1.favoriteFood[i]);
+  }
+
+  //Exercise 3
+
+  let suit = {
+    hat: 'baseball cap',
+    shirt: 'Hawaiian shirt',
+    pants: 'cargo shorts',
+    shoes: 'flip-flops',
+  };
+
+  penguin1.outfit = suit;
+
+  penguin1.penguinHatType = suit.hat;
+  console.log(penguin1.penguinHatType);
+
+
+  //pregunta 3
+  penguin1.outfit.accesory = 'pocket watch';
+
+  //pregunta 4
+  penguin1.outfit.hat = 'top hat';
+  
+  //pregunta 5
+  delete penguin1.outfit.pants;
+  
+  //pregunta 6
+  for (const value in suit) {
+    console.log(suit[value]);
+  }
+
+  
+  //Exercise 4
+
+  var gunter = {
+    name: "Gunter",
+    origin: "Adventure Time",
+    canFly: false,
+    sayHello: function () {
+      console.log("QUACK!!!");
+    }
+  };
+  
+  var ramon = {
+    name: "Ramón",
+    origin: "Happy Feet",
+    canFly: true,
+    sayHello: function () {
+      console.log("Estoy encantado de conocerle.");
+    }
+  };
+  
+  var fred = {
+    name: "Fred",
+    origin: "Sitting Ducks",
+    canFly: false,
+    sayHello: function () {
+      console.log("Hi there!");
+    }
+  };
+
+  //1
+  let penguins = [gunter, ramon, fred];
+  
+  //2
+  console.log(penguins[0]);
+
+  //3
+  let = secondPenguin = penguins[1];
+
+  //4
+  console.log(penguins[penguins.length - 1].name);
+  
+  //5
+  
+
+  //6
+  console.log(penguins.length);
+
+  //7
+  penguins[penguins.length - 1].canFly = true;
+  
+  //8
+  penguins[0].sayHello();
+
+  //9
+  for (let i = 0; i < penguins.length; i++) {
+    console.log(penguins[i].name);
+  }
+
+  //10
+  for (let i = 0; i < penguins.length; i++) {
+    penguins[i].sayHello();
+  }
+
+  //11
+  for (let i = 0; i < penguins.length; i++) {
+    penguins[i].numberOfFeet = 2;
+  }
+
+  //12
+  for (let i = 0; i < penguins.length; i++) {
+    if (penguins[i].canFly === true) {
+      console.log(`${penguins[i].name} can fly!`);
+    }
+  }
+
 
 };