Can I use free web hosting-uploaded files on such a sites (blogger blog) that has already adsense ads? Actually I want to make game blogger blog, I want to upload all games on any free webhostig site (like 0000space) and use their download links in blog. And my blog has already adsense ads.
Yes, it is possible to add your Adsense code on Blogger or any other free host site. Check the below link for help:- http://www.google.com/support/blogger/bin/answer.py?answer=42281
I doubt this, however, many free hosts place their own ads on your websites. So, they are not offering you free services. They are actually earning from the ads and encashing your visitors.