diff --git a/1-exercises/A-accessing-values/exercise1.js b/1-exercises/A-accessing-values/exercise1.js
index 67416c69..605b7fcb 100644
--- a/1-exercises/A-accessing-values/exercise1.js
+++ b/1-exercises/A-accessing-values/exercise1.js
@@ -16,8 +16,8 @@ let dog = {
   Log the name and breed of this dog using dot notation.
 */
 
-let dogName; // complete the code
-let dogBreed; // complete the code
+let dogName = dog.name; // complete the code
+let dogBreed = dog.breed; // complete the code
 
 console.log(`${dogName} is a ${dogBreed}`);
 
diff --git a/1-exercises/A-accessing-values/exercise2.js b/1-exercises/A-accessing-values/exercise2.js
index 5b523ace..c7c8e188 100644
--- a/1-exercises/A-accessing-values/exercise2.js
+++ b/1-exercises/A-accessing-values/exercise2.js
@@ -17,7 +17,7 @@ let capitalCities = {
 */
 
 let myCountry = "UnitedKingdom";
-let myCapitalCity; // complete the code
+let myCapitalCity = capitalCities[myCountry]; // complete the code
 
 console.log(myCapitalCity);
 
diff --git a/1-exercises/A-accessing-values/exercise3.js b/1-exercises/A-accessing-values/exercise3.js
index 2e160dd5..766e26c5 100644
--- a/1-exercises/A-accessing-values/exercise3.js
+++ b/1-exercises/A-accessing-values/exercise3.js
@@ -21,7 +21,8 @@ let basketballTeam = {
 */
 
 // write code here
-
+const names = basketballTeam.topPlayers.sort();
+console.log(names.join(" "))
 
 /* EXPECTED RESULT
 
diff --git a/1-exercises/B-setting-values/exercise1.js b/1-exercises/B-setting-values/exercise1.js
index 7d0b05c5..35f09f38 100644
--- a/1-exercises/B-setting-values/exercise1.js
+++ b/1-exercises/B-setting-values/exercise1.js
@@ -23,7 +23,12 @@ let capitalCities = {
 */
 
 // write code here
-
+capitalCities.UnitedKingdom.population = 8980000;
+capitalCities.China.population = 21500000;
+capitalCities.Peru = {
+  name: "Lima",
+  population: 9750000
+}
 console.log(capitalCities);
 
 /* EXPECTED RESULT
diff --git a/1-exercises/B-setting-values/exercise2.js b/1-exercises/B-setting-values/exercise2.js
index 59fb7c1e..e33d8ec8 100644
--- a/1-exercises/B-setting-values/exercise2.js
+++ b/1-exercises/B-setting-values/exercise2.js
@@ -16,6 +16,7 @@ let student = {
 */
 
 // write code here
+student["attendance"] = 90; 
 
 /*
   - Write an "if" statement that changes the value of hasPassed to true
@@ -26,7 +27,9 @@ let student = {
 */
 
 // write code here
-
+if (student["attendance"] >= 90 && student["examScore"] > 60) {
+  student["hasPassed"] = true;
+}
 console.log(student);
 
 /* EXPECTED RESULT
diff --git a/1-exercises/C-undefined-properties/exercise.js b/1-exercises/C-undefined-properties/exercise.js
index 8b00f6ce..b07ac468 100644
--- a/1-exercises/C-undefined-properties/exercise.js
+++ b/1-exercises/C-undefined-properties/exercise.js
@@ -15,12 +15,13 @@ let car = {
 };
 
 console.log(car["colour"]);
+// In this example we get undefined because car doesn't have property "colour" 
 
 // Example 2
 function sayHelloToUser(user) {
   console.log(`Hello ${user.firstName}`);
 }
-
+// Here a problem, because property name is 'name', not "FirstName"
 let user = {
   name: "Mira"
 };
@@ -34,5 +35,5 @@ let myPet = {
     "My pet's name is Fluffy";
   },
 };
-
+// Here the problem in function, it doesn't work because it doesn't return anything
 console.log(myPet.getName());
diff --git a/1-exercises/D-object-methods/exercise.js b/1-exercises/D-object-methods/exercise.js
index 0b57f2e1..09fcc4f6 100644
--- a/1-exercises/D-object-methods/exercise.js
+++ b/1-exercises/D-object-methods/exercise.js
@@ -9,6 +9,9 @@
 
 let student = {
   // write code here
+  getName: function(name) {
+    console.log(`Student name: ${name}`)
+  }
 }
 
 student.getName("Daniel");
diff --git a/2-mandatory/1-recipes.js b/2-mandatory/1-recipes.js
index 6243fa9c..a8807cb7 100644
--- a/2-mandatory/1-recipes.js
+++ b/2-mandatory/1-recipes.js
@@ -22,4 +22,38 @@
   You should write and log at least 5 recipes
 */
 
-// write code here
\ No newline at end of file
+// write code here
+
+const recipe1 = {
+  title: "Easy kedgeree",
+  serves: 4,
+  ingredients: [
+  "300g basmati rice",
+  "600ml chicken stock",
+  "400g smoked haddock",
+  "100g frozen peas"
+  ]
+}
+const recipe2 = {
+  title: "Mole",
+  serves: 2,
+  ingredients: [
+  "Cinnamon",
+  "Cumin",
+  "Cocoa"
+  ]
+}
+
+const recipe3 = {
+  title: "Cacio e pepe",
+  serves: 2,
+  ingredients: [
+  "200g bucatini or spaghetti",
+  "25g butter",
+  "2 tsp whole black peppercorns, ground, or 1 tsp freshly ground black pepper",
+  "50g pecorino or parmesan, finely grated"
+  ]
+}
+console.log(recipe1)
+console.log(recipe2)
+console.log(recipe3)
diff --git a/2-mandatory/2-currency-code-lookup.js b/2-mandatory/2-currency-code-lookup.js
index 5fde14f1..0fafb299 100644
--- a/2-mandatory/2-currency-code-lookup.js
+++ b/2-mandatory/2-currency-code-lookup.js
@@ -19,8 +19,14 @@ const COUNTRY_CURRENCY_CODES = [
 
 function createLookup(countryCurrencyCodes) {
   // write code here
+  const currencyCode = {};
+  for (let item of countryCurrencyCodes) {
+    currencyCode[item[0]] = item[1];
+  }
+  return currencyCode;
 }
 
+
 /* ======= TESTS - DO NOT MODIFY =====
 - To run the tests for this exercise, run `npm test -- --testPathPattern 2-currency-code-lookup.js`
 - To run all exercises/tests in the mandatory folder, run `npm test`
diff --git a/2-mandatory/3-shopping-list.js b/2-mandatory/3-shopping-list.js
index d25cb366..9b11bbb2 100644
--- a/2-mandatory/3-shopping-list.js
+++ b/2-mandatory/3-shopping-list.js
@@ -20,6 +20,16 @@ let pantry = {
 
 function createShoppingList(recipe) {
   // write code here
+  let missingIngredients = [];
+  recipe.ingredients.forEach((ingredient) => {
+    if (!pantry.fridgeContents.includes(ingredient) && !pantry.cupboardContents.includes(ingredient)) {
+      missingIngredients.push(ingredient);
+    }
+  })
+ return {
+  name: recipe.name,
+  items: missingIngredients,
+};
 }
 
 /* ======= TESTS - DO NOT MODIFY =====
diff --git a/2-mandatory/4-restaurant.js b/2-mandatory/4-restaurant.js
index d7b81eea..8ed255d1 100644
--- a/2-mandatory/4-restaurant.js
+++ b/2-mandatory/4-restaurant.js
@@ -21,6 +21,12 @@ const MENU = {
 
 let cashRegister = {
   // write code here
+  orderBurger: function (balance) {
+    return balance >= MENU.burger? balance - MENU.burger : balance;
+  },
+  orderFalafel: function (balance) {
+    return balance >= MENU.falafel? balance - MENU.falafel : balance;
+  }
 }
 
 /* ======= TESTS - DO NOT MODIFY =====
diff --git a/3-extra/1-count-words.js b/3-extra/1-count-words.js
index 9d347ae5..55aa35dd 100644
--- a/3-extra/1-count-words.js
+++ b/3-extra/1-count-words.js
@@ -25,7 +25,12 @@
 
 function countWords(string) {
   const wordCount = {};
-
+  const arr = string.split(" ");
+  for (let word of arr) {
+    if (word.length !== 0) {
+    wordCount[word] = (wordCount[word] || 0) + 1;
+    } 
+  }
   // write code here
 
   return wordCount;