These are real but not actual REAL, they ask you to do data entry job or some clicks on the website, click on some ads, etc...etc...they will earn because of you as they have asked by some small SEO companies or other small companies that they will pay them but when it comes to your payment they will say that you have not done the job up to the mark or not done correctly
And there are many other ways..so do not involve in this kind of activites..
Thanks