Is it true that if I made pyramide from a paper and put a rusty nail in it after 1 or 2 nights the nail is going to be as god as new? I heard something like that but I don't believe in it :))

The scientific way to verify the statement is to try it. I would ask what kind of paper though.. newspaper, cotton paper, linen paper, school paper... let me know good luck

I heard that there are specific dimensions that are really connected with magic of hand made pyramides.. Ok I'll try and let you know :)