diff --git a/src/main/java/com/booleanuk/core/Exercise.java b/src/main/java/com/booleanuk/core/Exercise.java
index d31a45c..27c74bf 100644
--- a/src/main/java/com/booleanuk/core/Exercise.java
+++ b/src/main/java/com/booleanuk/core/Exercise.java
@@ -3,6 +3,7 @@
 import com.booleanuk.helpers.ExerciseBase;
 
 import java.util.ArrayList;
+import java.util.List;
 
 public class Exercise extends ExerciseBase {
     /*
@@ -44,6 +45,10 @@ public ArrayList<Integer> getFavouriteNumbers() {
            second number contained in the list that is returned from getFavouriteNumbers
      */
 
+    public int getSecondNumber() {
+        return getFavouriteNumbers().get(1);
+    }
+
 
 
     /*
@@ -55,7 +60,10 @@ public ArrayList<Integer> getFavouriteNumbers() {
          Use the ArrayList's replaceAll method to iterate through the ArrayList and replace each value with its double
          https://www.programiz.com/java-programming/library/arraylist/replaceall
      */
-
+    public ArrayList<Integer> multiply(ArrayList<Integer> list, int num) {
+        list.replaceAll(x -> x * num);
+        return list;
+    }
 
 
     /*
@@ -63,6 +71,9 @@ public ArrayList<Integer> getFavouriteNumbers() {
          - A list of strings
          The method must return a boolean that indicates whether the provided list is empty or not
      */
+    public boolean isEmpty(ArrayList<String> list) {
+        return list.isEmpty();
+    }
 
 
 
@@ -72,7 +83,10 @@ public ArrayList<Integer> getFavouriteNumbers() {
          - A string
          The method must add the second parameter into the list provided and then return the list
      */
-
+    public ArrayList<String> addIngredient(ArrayList<String> list, String word) {
+        list.add(word);
+        return list;
+    }
 
 
     /*
@@ -81,7 +95,10 @@ public ArrayList<Integer> getFavouriteNumbers() {
          - A string
          The method must remove the second parameter from the list and then return the list
      */
-
+    public ArrayList<String> removeIngredient(ArrayList<String> list, String ingredient) {
+        list.remove(ingredient);
+        return  list;
+    }
 
 
     /*
@@ -91,6 +108,10 @@ public ArrayList<Integer> getFavouriteNumbers() {
          The method must return a boolean that indicates whether the second parameter exists in the provided list
      */
 
+    public boolean containsIngredient(ArrayList<String> list, String ingredient) {
+        return list.contains(ingredient);
+    }
+
 
 
 }