diff --git a/bike-shop/src/stage1-literals.js b/bike-shop/src/stage1-literals.js
index c749dd2..5b31013 100644
--- a/bike-shop/src/stage1-literals.js
+++ b/bike-shop/src/stage1-literals.js
@@ -1,5 +1,23 @@
 const myBike = {
-  // your code here
+  name: 'Roadster',
+  price: 199.99,
+  frame: {
+    height: 55,
+    color: 'blue',
+    style: 'cruiser'
+  },
+  brakes: {
+    front: false,
+    back: true
+  },
+  tires: {
+    diameter: 22,
+    type: 'fat'
+  },
+
+  rings: [2, 5],
+
 }
 
+
 module.exports = myBike
diff --git a/jsinfo/Create_calculator.js b/jsinfo/Create_calculator.js
new file mode 100644
index 0000000..ae1ae47
--- /dev/null
+++ b/jsinfo/Create_calculator.js
@@ -0,0 +1,20 @@
+//Create Calculator
+
+let calculator = {
+
+  read() {
+    this.num1 = +prompt('num1?');
+    this.num2 = +prompt('num2?');
+  },
+  sum() {
+    return this.num1 + this.num2;
+  },
+
+  mul() {
+    return this.num1 * this.num2;
+  },
+};
+
+calculator.read();
+alert( calculator.sum() );
+alert( calculator.mul() );
diff --git a/jsinfo/Hello_Object.js b/jsinfo/Hello_Object.js
new file mode 100644
index 0000000..4e53226
--- /dev/null
+++ b/jsinfo/Hello_Object.js
@@ -0,0 +1,8 @@
+//Hello Object
+
+let user = {}
+user.name: 'John';
+user.surname: 'Smith';
+user.name = 'Pete';
+
+delete user.name
diff --git a/jsinfo/Ladder.js b/jsinfo/Ladder.js
new file mode 100644
index 0000000..a7be386
--- /dev/null
+++ b/jsinfo/Ladder.js
@@ -0,0 +1,17 @@
+//Ladder
+
+let ladder = {
+  step: 0,
+  up() {
+    this.step++;
+    return this;
+  },
+  down() {
+    this.step--;
+    return this;
+  },
+  showStep: function() { // shows the current step
+    alert( this.step );
+    return this;
+  }
+};
diff --git a/jsinfo/Multipy_numeric_properties.js b/jsinfo/Multipy_numeric_properties.js
new file mode 100644
index 0000000..380196f
--- /dev/null
+++ b/jsinfo/Multipy_numeric_properties.js
@@ -0,0 +1,26 @@
+//Multipy Numeric Properties by 2
+
+// before the call
+let menu = {
+  width: 200,
+  height: 300,
+  title: "My menu"
+};
+
+multiplyNumeric(menu);
+
+ function multiplyNumeric() {
+   for ( let key in obj ) {
+     if (typeof obj[key] == 'number') {
+       obj[key] *= 2;
+     }
+   }
+ }
+
+
+// after the call
+menu = {
+  width: 400,
+  height: 600,
+  title: "My menu"
+};