Check here.
http://onlineservices.immigration.go...anual/6954.htm
SM6 has a chart of all the points that can be claimed. The other sections give the detailed requirements for being able to claim points under that heading. Read it all VERY carefully. If there is anything you don't understand, please ask, giving a link to the page you're looking at.
If you have 140 points without a job offer, your EOI will be selected at the next draw. If you had a job offer, your EOI would be selected with a minimum of 100 points.