Can you show an example of using LINQ to perform queries on a collection?

LINQ (Language Integrated Query) allows for convenient querying of collections in C#. For example, to select all even numbers from a list and sort them in ascending order, you can write:

using System;
using System.Collections.Generic;
using System.Linq;

class Program
{
    static void Main()
    {
        List<int> numbers = new List<int> { 5, 2, 8, 3, 6, 1, 4 };

        var evenNumbers = from num in numbers
                          where num % 2 == 0
                          orderby num
                          select num;

        foreach (var n in evenNumbers)
        {
            Console.WriteLine(n);
        }
    }
}

You can also use the extension method:

var evenNumbers = numbers.Where(n => n % 2 == 0).OrderBy(n => n);