Question

i would like to create a new list with key and values

List<object> r = new List<object>();  
r.Add("apple");  
r.Add("John");  
return r;

when u Addwatch the r, you will see

[1] = apple  
[2] = John

Questions: How do i make the [1] and [2] to be new key? When i addwatch the r, i would like to see [1] is replaced by Name. something as below:

Name = apple  
TeacherName = John

Answer 1

Do you mean you want to use something like Dictionary<TKey, TValue>

example:

Dictionary<string, string> d = new Dictionary<string, string>();
d.Add("Name", "Apple");
d.Add("Teacher", "John");

or do you want an object to more strongly typed?
in this case you have to use your one class / struct

class MyObject
{
 public string Name {get; set;}
 public string Teacher {get; set;}
}

Then

var list = new List<MyObject>();
list.Add(new MyObject { Name = "Apple", Teacher = "John" });
list.Add(new MyObject { Name = "Banana", Teacher = "Setphan" });

then you can all it

var item = list[0];
var name = item.Name;
var teacher = item.Teacher;