diff --git a/filter/ex1.js b/filter/ex1.js
index fa4f3d80..dbc12a8d 100644
--- a/filter/ex1.js
+++ b/filter/ex1.js
@@ -13,7 +13,9 @@ Expected OUTPUT for this sample:
 
 */
 
+
 function getPositiveNumbers(numbers) {
+  return numbers.filter(numbers => numbers >= 0)
 }
 
 // If you need, you can always visualize the result with a console.log.
diff --git a/filter/ex2.js b/filter/ex2.js
index 5bc423e3..55488d8d 100644
--- a/filter/ex2.js
+++ b/filter/ex2.js
@@ -26,7 +26,9 @@ Expected OUTPUT for this sample:
 */
 
 function keepStarks(names) {
-}
+  return names.filter(names => names.endsWith('Stark')
+
+  )}
 
 // DON'T TOUCH THIS!
 module.exports = keepStarks;
diff --git a/filter/ex3.js b/filter/ex3.js
index 1076cf80..9a234bd2 100644
--- a/filter/ex3.js
+++ b/filter/ex3.js
@@ -33,6 +33,10 @@ Expected OUTPUT for these sample arguments:
 */
 
 function filterOnPrice(products, maxPrice) {
+
+  return products.filter(price => price.price <= maxPrice)
+
+
 }
 
 // DON'T TOUCH THIS!
diff --git a/map/ex1.js b/map/ex1.js
index 323e1028..e3543d84 100644
--- a/map/ex1.js
+++ b/map/ex1.js
@@ -25,8 +25,17 @@ Expected OUTPUT for this sample array:
   ]
 
 */
+const words = ['Chicken', 'Bacon', 'Tofu', 'Mayonnaise'];
+
+
 
 function getStringsLength(strings) {
+  return strings.map(function(words){
+    return words + ' contains ' + words.length + ' characters';
+
+  });
+
+
 }
 
 // If you need, you can always visualize the result with a console.log.
diff --git a/map/ex2.js b/map/ex2.js
index 99a2a2f1..51d778cc 100644
--- a/map/ex2.js
+++ b/map/ex2.js
@@ -32,6 +32,8 @@ Sample foods array, i.e. INPUT:
     }
   ]
 
+  
+
 Expected OUTPUT for this sample
   [
     'Bacon is not suitable for vegetarians',
@@ -43,9 +45,19 @@ Expected OUTPUT for this sample
 */
 
 function getFoodCategories(foods) {
-}
+  return foods.map(aliment => {
+    if (aliment.isVegetarian === true){
+      return (aliment.food + ' is suitable for vegetarians')
+
+    } else {
+      return (aliment.food + ' is not suitable for vegetarians')
+    }
 
 
 
+  })
+}
+
+
 // DON'T TOUCH THIS!
 module.exports = getFoodCategories;
diff --git a/map/ex3.js b/map/ex3.js
index 6a1c5960..6512928d 100644
--- a/map/ex3.js
+++ b/map/ex3.js
@@ -61,10 +61,20 @@ Expected OUTPUT for this sample:
 
  */
 
+
 function getMoviesFreshness(movies) {
+  return movies.map(movie => {
+    if (movie.rating < 60){
+      movie.label = 'rotten'
+    } else if (movie.rating >= 60 && movie.rating <= 75){
+      movie.label = 'fresh'
+    } else {
+      movie.label = 'certified fresh'
+    }
+    return movie
+  })
 }
 
 
-
 // DON'T TOUCH THIS!
 module.exports = getMoviesFreshness;