Can someone tell me, where I can download Crysis 2 or Need for Speed: Shift games from.?

I want to download free games, can someone give me one game any of these?

1- Need for Speed: Shift

2- Mafia 2

3- Crysis 2

4- Call of Duty: Black OpsCan someone tell me, where I can download Crysis 2 or Need for Speed: Shift games from.?
go to http://www.torrentdownloads.net/ search for games download the torrent having more seeds..u will need software to run torrent file use bittorrent search in google n download it...