Yesterday, I while I was making the Sexy Bookmarks Guide, I noticed something. The codes the I type like <, >, and & are automatically converted to like> or &. So I did some research and just found out that the answer is right below the post editor itself! (haha).
So how to do that?
1. In the Post Editor click Post Options
2. You will see something like this
3. Click on Show HTML literally
And you're done, you can now put <, > and & codes on your post without being autoconverted to some other codes.