What are the different type of welding jointsand how many ? (strongly not talking about body joints)

Wikipedia's Welding (http://en.wikipedia.org/wiki/Welding) article covers the five basic joints and Guide to the 5 basic types of Welding Joints (http://www.mydiscounttools.com/estore/articles/welding/WeldingJOINTS.html) illustrates those as well as some combination joints. So how exactly many depends on what the instructor wants to hear. See American Welding Society standard A2.4:2007 (https://www.awspubs.com/product_info.php?products_id=470) for symbols.

Thank you Scleros for your help!