Laravel 5 - LAMP (Cannot display any page other then welcome)

I have installed Laravel 5 and got to display the welcome page. But haven't been able to display any other page. I have installed with following settings:

In /etc/apache2/sites-available/laravel.example.com.conf

DocumentRoot   /var/www/laravel/public

In /var/www/laravel/app/Http/routes.php

// ---- THIS DOESN'T WORK
Route::get('/simple', function () {
    return View::make('simple');
});

// ---- THIS WORK FINE
Route::get('/', function () {
    return View::make('welcome');
});

In /var/www/laravel/public

$ ls -> index.php   robots.txt   web.config

In /var/www/laravel/resources

$ ls -> errors   vendor   simple.blade.php   welcome.blade.php
// welcome.blade.php -> gets displayed
// simple.blade.php -> doesn't get displayed

via Chebli Mohamed