Can someone copyright/own a math problem? [closed]

I asked this very question to a copywriter some years ago and he said that you can not copyright protect a formula but he also said that there are copyright protected algorithms.

So, where is the borderline? I do not know, but I guess this has to be tested in each case. Here is a discussion on the question, and here is a link to RSA.

Also, here is a link about plagiarism in science.