Delegates, Anonymous method and Lambda in C#

using System;

namespace Delegates
{
    class Program
    {
        // delegate defines the signature (returns type and parameters);
        public delegate int Manipulate(int a);

        static void Main(string[] args)
        {
            // Create a instance of the delegate
            var normalMethodDelegate = new Manipulate(NormalMethod); // allows methods to be passed as parameter; references to another method
            Console.WriteLine(normalMethodDelegate(4));

            var result = AnotherMethod(normalMethodDelegate, 4);  // Pass delegate as a parameter
            Console.WriteLine(result);

            Manipulate anonymousMethod = delegate (int a) { return a * 2; }; // Anonymous Method is a delegate () { } and returns a delegate
            var anonymousResult = anonymousMethod(4);

            //Lambda expressions are everything which have  =>  left and right value; They can return delegate or an Expression of the delegate;
            Manipulate lambdaDelegate = (a) => { return a * 2; };
            var lambdaResult = lambdaDelegate(5);
        }

        public static int NormalMethod(int a)
        {
            return a * 2;
        }

        public static int AnotherMethod(Manipulate method, int b)
        {
            return method(b);
        }
    }
}