diff --git a/1-js/04-object-basics/01-object/2-hello-object/task.md b/1-js/04-object-basics/01-object/2-hello-object/task.md
@@ -2,13 +2,13 @@ importance: 5

---

-# Hello, object

-Write the code, one line for each action:

-1. Create an empty object `user`.
-2. Add the property `name` with the value `John`.
-3. Add the property `surname` with the value `Smith`.
-4. Change the value of the `name` to `Pete`.
-5. Remove the property `name` from the object.

diff --git a/1-js/04-object-basics/01-object/3-is-empty/task.md b/1-js/04-object-basics/01-object/3-is-empty/task.md
@@ -2,11 +2,11 @@ importance: 5

---

-# Check for emptiness

-Write the function `isEmpty(obj)` which returns `true` if the object has no properties, `false` otherwise.

-Should work like that:

```js
let schedule = {};

diff --git a/1-js/04-object-basics/01-object/5-sum-object/task.md b/1-js/04-object-basics/01-object/5-sum-object/task.md
@@ -2,9 +2,9 @@ importance: 5

---

-# Sum object properties

-We have an object storing salaries of our team:

```js
let salaries = {
@@ -14,6 +14,6 @@ let salaries = {
}
```

-Write the code to sum all salaries and store in the variable `sum`. Should be `390` in the example above.

-If `salaries` is empty, then the result must be `0`.
diff --git a/1-js/04-object-basics/01-object/8-multiply-numeric/solution.md b/1-js/04-object-basics/01-object/8-multiply-numeric/solution.md
@@ -1,6 +1,6 @@
``` js run

-// before the call
let menu = {
  width: 200,
  height: 300,

diff --git a/1-js/04-object-basics/01-object/8-multiply-numeric/task.md b/1-js/04-object-basics/01-object/8-multiply-numeric/task.md
@@ -2,14 +2,14 @@ importance: 3

---

-# Multiply numeric property values by 2

-Create a function `multiplyNumeric(obj)` that multiplies all numeric property values of `obj` by `2`.

-For instance:

```js
-// before the call
let menu = {
  width: 200,
  height: 300,
@@ -18,16 +18,16 @@ let menu = {

multiplyNumeric(menu);

-// after the call
menu = {
  width: 400,
  height: 600,
  title: "My menu"
};
```

-Please note that `multiplyNumeric` does not need to return anything. It should modify the object in-place.

-P.S. Use `typeof` to check for a number here.