Creating folder wothout any name

you will be wondering, how to create a folder without any name.. Have you ever tried it?? If no then try it now..

Here is the solution for this..
1. Create a folder in any directory.
2. Right click on folder and select "Rename folder" or press F2
3. Now press Alt and Type 255(ALT+255) or ALT+0160

4. Now it's done.