no actually my site name is zigime so if i post my blog where ever the word zigime comes can i make link in that zigime word.
If you mean each post that is fine i would only post it once each post. You can have mutiple links but do not go crazy
You can post links in your blog. Just be careful that your whole page isn't only links. A few here and there will be fine!
Yes no problem to add the links on the blog. But you should care of the ratio of external links and the content. Less content and more links will be bad and the blog will look like spam.