Announcement for All

By this time I want to give some problems in Mathematics. The problem is always about Mathematics. I will let you to solve the problems. You can solve the problem, and send the solutions by email. In rtf file, please.
If somebody want to give me suggestion about problems want to be published in this blog, you can send me the problem, then I will write the problems in this blog.
Your answer, problem, and other suggestions can be sent to rosid_uny@yahoo.co.id
Thank you very much