Is there any way or file which can transfer only All Bookmarks and Contacts to computer or to other phone?

Contacts:

Contacts are stored in c:\System\Data\contacts.cdb

Contacts Manager can export your contacts to a text file:
http://my-symbian.com/7650/applications/applications.php?fldAuto=392&faq=2


Bookmarks:

Bookmarks are stored in c:\System\Data\Bookmarks1.db

I don't know of a utility/tool that can export the bookmarks to a text file like with Contacts.

But to import contacts and bookmarks, couldn you jst use the nokia pc Suite?? casue there is Backup and Restore, and it saves it as a .nfb! so then you can just restore it from ur computer with no problems!! :D