diff --git a/app/zadanie01.js b/app/zadanie01.js
index 8c20173..f4304fd 100644
--- a/app/zadanie01.js
+++ b/app/zadanie01.js
@@ -1 +1,7 @@
-//Twój kod
\ No newline at end of file
+//Twój kod
+
+const hello = setTimeout(() => {
+    console.log("hello Node.js")
+}, 5000)
+
+clearInterval(hello)
\ No newline at end of file
diff --git a/app/zadanie02.js b/app/zadanie02.js
index 8c20173..91a010f 100644
--- a/app/zadanie02.js
+++ b/app/zadanie02.js
@@ -1 +1,24 @@
-//Twój kod
\ No newline at end of file
+//Twój kod
+console.log("Witam")
+setTimeout(() => {
+    console.log("Node.js")
+}, 4000)
+setTimeout(() => {
+    console.log("się")
+}, 1000)
+setTimeout(() => {
+    console.log("i korzystam")
+}, 6000)
+setTimeout(() => {
+    console.log("w konsoli")
+}, 5000)
+setTimeout(() => {
+    console.log("z funkcji czasu!")
+}, 7000)
+setTimeout(() => {
+    console.log("z")
+}, 2000)
+setTimeout(() => {
+    console.log("programem")
+}, 3000)
+
diff --git a/app/zadanie03.js b/app/zadanie03.js
index 8c20173..970b090 100644
--- a/app/zadanie03.js
+++ b/app/zadanie03.js
@@ -1 +1,16 @@
-//Twój kod
\ No newline at end of file
+//Twój kod
+
+const arr = process.argv;
+
+if(arr.length >= 4){
+    const newArr = [];
+    for(let i=2; i< arr.length; i++){
+        newArr.push(Number(arr[i]))
+    };
+    const sum = newArr.reduce((a, c) => {
+        return a + c;
+    });
+    console.log(sum);
+}else{
+    console.log("I need two or more argument bro")
+}
diff --git a/app/zadanieDnia.js b/app/zadanieDnia.js
index 8c20173..1eb0192 100644
--- a/app/zadanieDnia.js
+++ b/app/zadanieDnia.js
@@ -1 +1,17 @@
-//Twój kod
\ No newline at end of file
+//Twój kod
+
+const arr = process.argv;
+const newArr=[];
+
+for(let i=2; i<arr.length; i++){
+    newArr.push(Number(arr[i]));
+};
+
+
+// console.log(newArr);
+newArr.forEach(function(el){
+
+    setTimeout(() => {
+        console.log(el)
+    }, el*1000 ) 
+})
\ No newline at end of file