How can i remove title requirement for content type For example i have content type article i need to remove requirement for title, right now its a Node module element and i can not edit it. I found module title but when i installed id and tried to change title, my site crashed.

Is there any solution to achieve this?

Should i remove title on content type edit page and replace it with editable field?

UPDATE:

Some of you maybe do not understand me right). So i have content type Answer and this c.type has two fields title and body. When someone want to answer atm he needs to fill title field every time he wants to answer, but i need to give user a choice to just fill only body field OR body and title if user want to fill the title. The title field should be displayed on node edit every time!

So only way i see viable is to create new field and  hide title with automatic-node-title module...
I dont' think you can entirely remove the title from the nodes but you may hide it and automatically populate it, as is below:

Auto node titles and Title override

I have used the first one before.