Can you have more than 2 H2 tags?
 

Should you only use h1, h2, h3, h4 once? Or can you use that heading a couple of times in one post? Please explain this to me a little more in depth. Thanks for helping.

1 H1, 2 H2, 4 H3, 8 H4 for a single web page

1 H1, 2 H2, 4 H3, 8 H4 for a single web page

Ya i agree with those friends sayings

Yes ,you can use the H2 tag in the same post.You have do this when two sub headings are there in the posting.