How do I queue processes on C#?

Question

So I have to pause a process for a second and then Start the other one, So basically I have to pause and resume this processes.

Also I have to use a Stack. Have to Save the process as it's executing so I can resume it. Has to have an ID and show the Priority.

Anybody knows what I have to use?

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Diagnostics;
using System.Threading;
using System.Runtime.InteropServices;

namespace Práctica_2
{
    class Program
    {

            static void Main(string[] args)
            {

                Process Contador = new Process();
                Process Datos = new Process();
                Process Google = new Process();
                Process Numero = new Process();
                Process Finalizar = new Process();


                try
                {                    
                    System.Diagnostics.Process.Start("C:\\Users\\M-00\\Desktop\\Práctica 2\\Datos\\Datos\\obj\\Debug\\Datos.exe");
                    Datos.Start();
                    Thread.Sleep(250);
                }
                catch (Exception e)
                {
                    Console.WriteLine(e.Message);
                }

                try
                {
                    System.Diagnostics.Process.Start("C:\\Users\\M-00\\Desktop\\Práctica 2\\Contador\\Contador\\obj\\Debug\\Contador.exe");
                    Contador.Start();
                    Datos.WaitForExit(250);
                    Thread.Sleep(500);
                }
                catch (Exception e)
                {
                    Console.WriteLine(e.Message);
                }

                try
                {
                    System.Diagnostics.Process.Start("C:\\Users\\M-00\\Desktop\\Numeros\\Numeros\\obj\\Debug\\Numeros.exe");
                    Numero.Start();
                    Datos.WaitForExit(500);
                    Thread.Sleep(750);
                }
                catch (Exception e)
                {
                    Console.WriteLine(e.Message);
                }
            }
        }
    }