diff --git a/.DS_Store b/.DS_Store
new file mode 100644
index 0000000..eb0306a
Binary files /dev/null and b/.DS_Store differ
diff --git a/queries.js b/queries.js
index 99f09c5..44365f4 100644
--- a/queries.js
+++ b/queries.js
@@ -1,7 +1,53 @@
+print("Employees");
 
+// List all the employees.
+db.employees.find().pretty();
+//Find the employee with whose name is Steve.
+db.employees.find({ name: "Steve" }).pretty();
+//Find all employees whose age is greater than 30.
+db.employees.find({ age: { $gt: 30 } }).pretty();
+//Find the employee whose extension is 2143.
+db.employees.find({ "phone.ext": "2143" }).pretty();
+// Find all employees that are over 30.
+db.employees.find({ age: { $gte: 30 } }).pretty();
+// Find all employees that are less than or equal to 30.
+db.employees.find({ age: { $lte: 30 } }).pretty();
+// Find all the employees whose favorite food is pizza.
+db.employees.find({ "favorites.food": "pizza" }).pretty();
+// Change Willy’s personal phone number to "93-123-45-67".
+db.employees.find({ name: "Willy" }).pretty();
+db.employees.updateOne(
+  { name: "Willy" },
+  { $set: { "phone.personal": "93-123-45-67" } }
+);
+// Change Bob’s privilege to normal user.
+db.employees.find({ name: "Bob" }).pretty();
+db.employees.updateOne({ name: "Bob" }, { $set: { privileges: "user" } });
+// Find all employees whose favorite artist is equal to Picasso.
+db.employees.find({ "favorites.artist": "Picasso" }).pretty();
+// Delete the user John.
+db.employees.deleteOne({ name: "John" });
 
-print('Employees')
+// RESTAURANTS:
 
-// List all the employees.
-print('1. List all Employees')
-db.employees.find({}).forEach(printjsononeline)
\ No newline at end of file
+// List all the restaurants.
+db.restaurants.find().pretty();
+// Find all the restaurants and display only the fields restaurant_id, name, borough and cuisine.
+
+// Find all the restaurants and display only the fields restaurant_id, name, borough and zip code.
+
+// Find the restaurants which are in the borough Bronx.
+
+// Find the restaurants which are in the borough Brooklyn with Steak cuisine.
+
+// Find the restaurants which have achieved a score bigger than 90.
+
+// Find the restaurants that do not prepare any Bakery cuisine and with a grade score equal or bigger than 70.
+
+// Find the restaurants which do not prepare any Chinese cuisine and have achieved a grade point A which do not belong to the borough Manhattan.
+
+// Update restaurants with 'American ' cuisine to 'American' (without the space!!!)
+
+// Update Morris Park Bake Shop address street to Calle falsa 123.
+
+// Delete all the restaurants with address zipcode 10466.