diff --git a/exercises/001-isOldEnoughToDrink/app.js b/exercises/001-isOldEnoughToDrink/app.js
index c4d3bab4d..781d9124d 100644
--- a/exercises/001-isOldEnoughToDrink/app.js
+++ b/exercises/001-isOldEnoughToDrink/app.js
@@ -1,4 +1,6 @@
 function isOldEnoughToDrink(age) {
     // your code here
-    
+    return age >= 21
 }
+
+console.log(isOldEnoughToDrink(23))
\ No newline at end of file
diff --git a/exercises/002-isOldEnoughToDrive/app.js b/exercises/002-isOldEnoughToDrive/app.js
index 0ab7348dd..317bfbfd3 100644
--- a/exercises/002-isOldEnoughToDrive/app.js
+++ b/exercises/002-isOldEnoughToDrive/app.js
@@ -1,4 +1,5 @@
 function isOldEnoughToDrive(age) {
   // your code here
-  
+  return age >= 16
 }
+console.log(isOldEnoughToDrive(6))
\ No newline at end of file
diff --git a/exercises/003-isOldEnoughToVote/app.js b/exercises/003-isOldEnoughToVote/app.js
index 63c4efb41..81a07aaf0 100644
--- a/exercises/003-isOldEnoughToVote/app.js
+++ b/exercises/003-isOldEnoughToVote/app.js
@@ -1,4 +1,5 @@
 function isOldEnoughToVote(age) {
   // your code here
-  
+  return age >= 18
 }
+console.log(isOldEnoughToVote(6))
\ No newline at end of file
diff --git a/exercises/004-isOldEnoughToDrinkAndDrive/app.js b/exercises/004-isOldEnoughToDrinkAndDrive/app.js
index c8c52473a..ae49a9e7c 100644
--- a/exercises/004-isOldEnoughToDrinkAndDrive/app.js
+++ b/exercises/004-isOldEnoughToDrinkAndDrive/app.js
@@ -1,4 +1,4 @@
 function isOldEnoughToDrinkAndDrive(age) {
   // your code here
-  
+  return false
 }
diff --git a/exercises/005-checkAge/app.js b/exercises/005-checkAge/app.js
index 0ff57081e..6ab9db077 100644
--- a/exercises/005-checkAge/app.js
+++ b/exercises/005-checkAge/app.js
@@ -1,4 +1,10 @@
 function checkAge(name, age) {
   // your code here
-  
+  if (age < 21) {
+    return "Go home, " + name + "!";
+  } else {
+    return "Welcome, " + name + "!";
+  }
 }
+console.log(checkAge("Adrian", 22));
+
diff --git a/exercises/006-getFullName/app.js b/exercises/006-getFullName/app.js
index e8d8b83a8..6f0fa8532 100644
--- a/exercises/006-getFullName/app.js
+++ b/exercises/006-getFullName/app.js
@@ -1,4 +1,6 @@
 function getFullName(firstName, lastName) {
   // your code here
-  
+  return firstName + " " + lastName
 }
+
+console.log(getFullName("Paco","Ruiz"))
\ No newline at end of file
diff --git a/exercises/007-getLengthOfWord/app.js b/exercises/007-getLengthOfWord/app.js
index 8d04d4f58..19540e761 100644
--- a/exercises/007-getLengthOfWord/app.js
+++ b/exercises/007-getLengthOfWord/app.js
@@ -1,4 +1,6 @@
 function getLengthOfWord(word) {
   // your code here
-  
+
+  return word.length
 }
+console.log(getLengthOfWord("Emilio"))
diff --git a/exercises/008-getLengthOfTwoWords/app.js b/exercises/008-getLengthOfTwoWords/app.js
index 032c8cff4..411783c96 100644
--- a/exercises/008-getLengthOfTwoWords/app.js
+++ b/exercises/008-getLengthOfTwoWords/app.js
@@ -1,4 +1,4 @@
 function getLengthOfTwoWords(word1, word2) {
   // your code here
-  
+  return word1.length + word2.length
 }
diff --git a/exercises/009-getLengthOfThreeWords/app.js b/exercises/009-getLengthOfThreeWords/app.js
index 9049a6d5d..f1efe2f4f 100644
--- a/exercises/009-getLengthOfThreeWords/app.js
+++ b/exercises/009-getLengthOfThreeWords/app.js
@@ -1,6 +1,6 @@
 function getLengthOfThreeWords(word1, word2, word3) {
   // your code here
-  
+  return word1.length + word2.length + word3.length
 }
 
 let output = getLengthOfThreeWords('some', 'other', 'words');
diff --git a/exercises/010-isSameLength/app.js b/exercises/010-isSameLength/app.js
index 6ebc804ae..09f4e4c82 100644
--- a/exercises/010-isSameLength/app.js
+++ b/exercises/010-isSameLength/app.js
@@ -1 +1,4 @@
-// Write your function here
\ No newline at end of file
+// Write your function here
+function isSameLength (word1,word2) {
+return word1.length == word2.length
+}
\ No newline at end of file
diff --git a/exercises/011-isGreaterThanTen/app.js b/exercises/011-isGreaterThanTen/app.js
index b60c49b11..2d274bf74 100644
--- a/exercises/011-isGreaterThanTen/app.js
+++ b/exercises/011-isGreaterThanTen/app.js
@@ -1,4 +1,4 @@
 function isGreaterThanTen(num) {
   // your code here
-  
+  return num > 10
 }
diff --git a/exercises/012-isLessThanThirty/app.js b/exercises/012-isLessThanThirty/app.js
index a9612b873..f1a73962c 100644
--- a/exercises/012-isLessThanThirty/app.js
+++ b/exercises/012-isLessThanThirty/app.js
@@ -1,4 +1,4 @@
 function isLessThan30(num) {
   // your code here
-  
+  return num < 30
 }
diff --git a/exercises/013-equalsTen/app.js b/exercises/013-equalsTen/app.js
index 0d5c28e62..25c7bf3e5 100644
--- a/exercises/013-equalsTen/app.js
+++ b/exercises/013-equalsTen/app.js
@@ -1,4 +1,4 @@
 function equalsTen(num) {
   // your code here
-  
+  return num == 10
 }
diff --git a/exercises/014-isLessThan/app.js b/exercises/014-isLessThan/app.js
index d7572d4ad..6fac9d5c0 100644
--- a/exercises/014-isLessThan/app.js
+++ b/exercises/014-isLessThan/app.js
@@ -1,3 +1,4 @@
 function isLessThan(num1, num2) {
   // your code here
+  return num2 < num1
 }
diff --git a/exercises/015-isGreaterThan/app.js b/exercises/015-isGreaterThan/app.js
index 83c54fd95..8e2a582c7 100644
--- a/exercises/015-isGreaterThan/app.js
+++ b/exercises/015-isGreaterThan/app.js
@@ -1,4 +1,4 @@
 function isGreaterThan(num1, num2) {
   // your code here
-  
+  return num2 > num1
 }
diff --git a/exercises/016-isEqualTo/app.js b/exercises/016-isEqualTo/app.js
index 6ebc804ae..7f5b858a6 100644
--- a/exercises/016-isEqualTo/app.js
+++ b/exercises/016-isEqualTo/app.js
@@ -1 +1,4 @@
-// Write your function here
\ No newline at end of file
+// Write your function here
+function isEqualTo (num1,num2) {
+return num1 === num2
+}
\ No newline at end of file
diff --git a/exercises/017-isEven/app.js b/exercises/017-isEven/app.js
index 6ebc804ae..61ed93566 100644
--- a/exercises/017-isEven/app.js
+++ b/exercises/017-isEven/app.js
@@ -1 +1,4 @@
-// Write your function here
\ No newline at end of file
+// Write your function here
+function isEven (num) {
+    return num % 2 === 0
+}
\ No newline at end of file
diff --git a/exercises/018-isOdd/app.js b/exercises/018-isOdd/app.js
index 6ebc804ae..930974390 100644
--- a/exercises/018-isOdd/app.js
+++ b/exercises/018-isOdd/app.js
@@ -1 +1,4 @@
-// Write your function here
\ No newline at end of file
+// Write your function here
+function isOdd (num) {
+    return num % 2 != 0
+}
\ No newline at end of file
diff --git a/exercises/019-areBothOdd/app.js b/exercises/019-areBothOdd/app.js
index 3e2df3368..a09418e6f 100644
--- a/exercises/019-areBothOdd/app.js
+++ b/exercises/019-areBothOdd/app.js
@@ -1 +1,4 @@
 // Write your function here
+function areBothOdd (num1,num2) {
+return num1 % 2 != 0 && num2 % 2 != 0;
+}
\ No newline at end of file
diff --git a/exercises/020-isEitherEven/app.js b/exercises/020-isEitherEven/app.js
index 6ebc804ae..46aabe21c 100644
--- a/exercises/020-isEitherEven/app.js
+++ b/exercises/020-isEitherEven/app.js
@@ -1 +1,4 @@
-// Write your function here
\ No newline at end of file
+// Write your function here
+function isEitherEven (num1, num2) {
+return num1 % 2 == 0 || num2 % 2 == 0;
+}
\ No newline at end of file
diff --git a/exercises/021-isOddLength/app.js b/exercises/021-isOddLength/app.js
index 3e2df3368..ca49a01d0 100644
--- a/exercises/021-isOddLength/app.js
+++ b/exercises/021-isOddLength/app.js
@@ -1 +1,4 @@
 // Write your function here
+function isOddLength (word) {
+    return word.length % 2 != 0
+}
\ No newline at end of file
diff --git a/exercises/022-isEvenLength/app.js b/exercises/022-isEvenLength/app.js
index 6ebc804ae..4c52fc20a 100644
--- a/exercises/022-isEvenLength/app.js
+++ b/exercises/022-isEvenLength/app.js
@@ -1 +1,4 @@
-// Write your function here
\ No newline at end of file
+// Write your function here
+function isEvenLength (word) {
+return word.length % 2 == 0
+}
\ No newline at end of file
diff --git a/exercises/023-computeAverageLengthOfWords/app.js b/exercises/023-computeAverageLengthOfWords/app.js
index 6ebc804ae..3d9de6e98 100644
--- a/exercises/023-computeAverageLengthOfWords/app.js
+++ b/exercises/023-computeAverageLengthOfWords/app.js
@@ -1 +1,4 @@
-// Write your function here
\ No newline at end of file
+// Write your function here
+function computeAverageLengthOfWords(word1, word2) {
+    return (word1.length + word2.length) / 2
+}
\ No newline at end of file
diff --git a/exercises/024-isEvenAndGreaterThanTen/app.js b/exercises/024-isEvenAndGreaterThanTen/app.js
index 6ebc804ae..9e3160c7e 100644
--- a/exercises/024-isEvenAndGreaterThanTen/app.js
+++ b/exercises/024-isEvenAndGreaterThanTen/app.js
@@ -1 +1,4 @@
-// Write your function here
\ No newline at end of file
+// Write your function here
+function isEvenAndGreaterThanTen(num) {
+    return num % 2 == 0 && num > 10
+}
\ No newline at end of file
diff --git a/exercises/025-average/app.js b/exercises/025-average/app.js
index 6ebc804ae..6742e2327 100644
--- a/exercises/025-average/app.js
+++ b/exercises/025-average/app.js
@@ -1 +1,4 @@
-// Write your function here
\ No newline at end of file
+// Write your function here
+function average (num1,num2) {
+    return (num1 + num2) /2
+}
\ No newline at end of file
diff --git a/exercises/026-computeAreaOfATriangle/app.js b/exercises/026-computeAreaOfATriangle/app.js
index 3e2df3368..1793db907 100644
--- a/exercises/026-computeAreaOfATriangle/app.js
+++ b/exercises/026-computeAreaOfATriangle/app.js
@@ -1 +1,4 @@
 // Write your function here
+function computeAreaOfATriangle () {
+    
+}
\ No newline at end of file