can anyone give me any cheats for resident evil 4?

Answer 1

There are no cheats available for Resident Evil 4 unless you use an Action Replay or some other cheating device. I can give you a link to a great VIDEO walkthrough for RE4:
http://www.nextgenwalkthroughs.com/systems/gamecube/residentevil4/index.php
Here's another VIDEO walkthrough if you want to check this one out:
http://www.stuckgamer.com/gui_res_evil_4_01.shtml
And here is a good Guide for RE4 in TEXT form:
http://guides.ign.com/guides/15821/index.html

Answer 2

There are no cheats, just unlockables.