Create a program with a questions

Question

Hello! 
i want to create a program at the beginning greet me and ask me which exercise I want to perform by telling me you can choose from 1 to (where I arrived). once chosen he writes me the description (summary)of what the exercise does and asks me to continue, then the little program I made starts. At the end of the execution he asks me if I want to close or continue with another exercise, if I choose to continue I must choose the exercise I want to do and so on. Can u help please?



static void Main(string[] args)
{
//Esercizio1();
//Esercizio2();
//Esercizio3();
}

/// <summary>
/// Stampa ciao e nome su due righe
/// </summary>
public static void Exercise1()
{
Console.WriteLine("Ciao");
Console.WriteLine("World");
Console.WriteLine("");
Console.WriteLine("the end...");
Console.ReadLine();
}

/// <summary>
// stampare la somma di 2 numeri
/// </summary>
public static void Exercise2()
{
Console.WriteLine(40 + 20);
Console.ReadLine();
}