diff --git a/src/CombiningLambdas.kt b/src/CombiningLambdas.kt
new file mode 100644
index 0000000..68ae8ae
--- /dev/null
+++ b/src/CombiningLambdas.kt
@@ -0,0 +1,26 @@
+fun main(){
+
+    val numbers = listOf(1, 2, 3, 4, 5, 6, 7, 8, 9, 10)
+
+    val processedNumbers = processNumbers(numbers)
+    println(processedNumbers)
+
+    //The bonus
+
+    val filterOdd: (Int) -> Boolean = { it % 2 != 0 }
+    val square: (Int) -> Int = { it * it }
+
+    val processedNumbersBonus = processNumbersBonus(numbers, filterOdd, square)
+
+    println(processedNumbersBonus)
+
+}
+
+fun processNumbers(numbers: List<Int>): List<Int> {
+    return numbers.filter { it % 2 != 0 }.map { it * it }
+}
+
+//The bonus
+fun processNumbersBonus(numbers: List<Int>, filter: (Int) -> Boolean, transform: (Int) -> Int): List<Int> {
+    return numbers.filter(filter).map(transform)
+}
\ No newline at end of file
diff --git a/src/Custom.kt b/src/Custom.kt
new file mode 100644
index 0000000..ca879f3
--- /dev/null
+++ b/src/Custom.kt
@@ -0,0 +1,8 @@
+fun main(){
+
+    val fruits = listOf("apple", "banana", "kiwi", "strawberry", "grape")
+
+    val sortedWords = fruits.sortedByDescending { it.length }
+
+    println(sortedWords)
+}
\ No newline at end of file
diff --git a/src/FilterList.kt b/src/FilterList.kt
new file mode 100644
index 0000000..ddc2d1d
--- /dev/null
+++ b/src/FilterList.kt
@@ -0,0 +1,17 @@
+fun main(){
+
+    val greaterThanFive = customFilter(listOf(1, 2, 3, 4, 5, 6, 7, 8, 9, 10)) { it > 5 }
+    println(greaterThanFive)
+
+    val evenNumbers = customFilter(listOf(1, 2, 3, 4, 5, 6, 7, 8, 9, 10)) { it % 2 == 0 }
+    println(evenNumbers)
+
+    val multiplesOfThree = customFilter(listOf(1, 2, 3, 4, 5, 6, 7, 8, 9, 10)) { it % 3 == 0 }
+    println(multiplesOfThree)
+
+}
+
+fun customFilter(numbers: List<Int>, filter: (Int) -> Boolean): List<Int>{
+    return numbers.filter(filter)
+}
+
diff --git a/src/FilterNames.kt b/src/FilterNames.kt
new file mode 100644
index 0000000..83a32f4
--- /dev/null
+++ b/src/FilterNames.kt
@@ -0,0 +1,13 @@
+fun main(){
+
+    val names = listOf("Alice", "Bob", "Amir", "Charlie", "Annie", "David")
+
+    val filteredNamess = filterNames(names){it.startsWith("A")}
+
+    println(filteredNamess)
+
+}
+
+fun filterNames(names: List<String>, filterLogic: (String) -> Boolean): List<String>{
+    return names.filter(filterLogic)
+}
\ No newline at end of file
diff --git a/src/ListTransformation.kt b/src/ListTransformation.kt
new file mode 100644
index 0000000..ce3543b
--- /dev/null
+++ b/src/ListTransformation.kt
@@ -0,0 +1,8 @@
+fun main()
+{
+    val numbers = listOf(1,2,3,4,5,6,7,8,9,10)
+    val doublenumbers = numbers.map { it * 2 }
+
+    println(doublenumbers)
+
+}
\ No newline at end of file
diff --git a/src/Main.kt b/src/Main.kt
deleted file mode 100644
index a7a5e00..0000000
--- a/src/Main.kt
+++ /dev/null
@@ -1,3 +0,0 @@
-fun main() {
-    println("Hello World!")
-}
\ No newline at end of file