I recieve many emails from people across the globe saying if i advertise my website through google i can make a lot of money when people view my website or click it,so i want to know how true is that & how do you pay?
Those people are trying to sell you something you may not need.
Do you have an eCommerce site (you sell stuff)? If so, Google AdWords can help bring potential customers to your site, but it's up to you to sell something.
Some will suggest you can use AdSense on your site--Google will place ads on your site and pay you a percentage of the revenue from clicks--and advertise with AdWords to make a profit. I guess some people do that, but I've never been able to get the numbers to work even on paper.
Best of Luck!