diff --git a/.idea/misc.xml b/.idea/misc.xml
index 03f397c..10a22f9 100644
--- a/.idea/misc.xml
+++ b/.idea/misc.xml
@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <project version="4">
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_19" default="true" project-jdk-name="19" project-jdk-type="JavaSDK">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_23" default="true" project-jdk-name="19" project-jdk-type="JavaSDK">
     <output url="file://$PROJECT_DIR$/out" />
   </component>
 </project>
\ No newline at end of file
diff --git a/src/Main.kt b/src/Main.kt
index a7a5e00..3db9d62 100644
--- a/src/Main.kt
+++ b/src/Main.kt
@@ -1,3 +1,41 @@
 fun main() {
-    println("Hello World!")
+    // Part 1
+    val numberList = (1..10).toList()
+    val doubled = numberList.map {it * 2}
+    println(doubled)
+
+    // Part 2
+    val people = listOf("Alice", "Bob", "Amir", "Charlie", "Annie", "David")
+    val filteredPeople = filterNames(people) {it.startsWith("A")}
+    println(filteredPeople)
+
+    // Part 3
+    val fruits = listOf("apple", "banana", "kiwi", "strawberry", "grape")
+    val sortedFruits = fruits.sortedByDescending { it.length }
+    println(sortedFruits)
+
+    // Part 4
+    println(customFilter(numberList) { it > 5 })
+    println(customFilter(numberList) { it % 2 == 0 })
+    println(customFilter(numberList) { it % 3 == 0 })
+
+    // Part 5 - Modified for bonus
+    val result = processNumbers(numberList, {it % 2 != 0} , {it * it})
+    println(result)
+}
+
+// Part 2
+fun filterNames(names: List<String>, filter: (String) -> Boolean): List<String> {
+    return names.filter(filter)
+}
+
+// Part 4
+fun customFilter(numbers: List<Int>, filter: (Int) -> Boolean): List<Int> {
+    return numbers.filter(filter)
+}
+
+// part 5 - Modified for bonus
+fun processNumbers(numbers: List<Int>, filter: (Int) -> Boolean, transform: (Int) -> Int): List<Int> {
+    val evenFilter = numbers.filter(filter)
+    return evenFilter.map(transform)
 }
\ No newline at end of file