var queryOperators = from m in typeof(Enumerable).GetMethods()
                     where m.IsStatic
                     group m by m.Name into queryOperator
                     orderby queryOperator.Key
                     select new { Name = queryOperator.Key, Overloads = queryOperator.Count() };

foreach (var queryOperator in queryOperators)
{
    Console.WriteLine(“{0} has {1} overload(s)”, queryOperator.Name, queryOperator.Overloads);
}