using System;

using System.Collections.Generic;

using System.Linq;

public class Program

{

    public static void Main()

    {

        var things = new List<Thing>();

        things.Add(new Thing {Value = 1});

        things.Add(new Thing {Value = 2});

        things.Add(new Thing {Value = 3});

        things.Add(new Thing {Value = 4});

        var thingsOverTwo = things.Where(x => x.Value > 2).Count();

        var valuesOverOne = things.Where(x => x.Value > 1).Select(x => x.Value).ToList();

        var largestValue = things.Max(x => x.Value);

        var sumsOverOne = valuesOverOne.Sum();

        Console.WriteLine($"{nameof(thingsOverTwo)} {thingsOverTwo}");

        Console.WriteLine($"{nameof(valuesOverOne)} {valuesOverOne.Count}");

        Console.WriteLine($"{nameof(largestValue)} {largestValue}");

        Console.WriteLine($"{nameof(sumsOverOne)} {sumsOverOne}");      

    }

}

​

public class Thing

{

    public int Value {get;set;}

}