If I add an लेख to a club, then unsubscribe from that club, will my लेख be deleted?

No, your लेख will stay on that club, even if आप unsubscribe from that club. Even if आप were to मिटाइए your फैन्पॉप account (no idea why आप would want to do that though), your लेख will stay there for everyone to see. The only one able to मिटाइए your article, is either आप या an admin.

Hope I could have been of help. ;-)

No, I don't think it will. However, I'm not totally sure.

Last time i checked no i dont think it will but आप will not get a medal in that club i Tested it out once well If आप "unsubscribe" from the club your most likely lose the medal progress so no it wont get Deleted