How many punctuation marks are there in English and what are they?

Everyone knows the 26 letters of the alphabet, and everyone knows the 10 numerals. But naming the punctuation marks or even guessing how many there are is a different thing.

Of course most of us know how to punctuate our sentences more or less correctly. But I don't think anyone can simply name all of the punctuation marks without looking at any thing - or even tell you how many there are. (I think there are about 19, but I'm not sure that I could name them without looking at any thing.) After all, there's no punctuation mark song (like the alphabet song).

How many punctuation marks are there and what are they?

2015-09-09T12:55:28Z

Actually, I can think of 22:

full stop (.), question mark (?), exclamation mark (!), comma (,), semicolon (;), colon (:), hyphen (-), en dash, em dash, apostrophe ('), ellipsis (...), stroke (/), single quotation marks 'thus', double quotation marks "thus", right and left brackets (thus), right and left square brackets [thus], right and left curly brackets {thus}, right and left angle brackets <thus>.

The only two not on my keyboard are the en dash and em dash.

Mercy2015-09-09T12:08:03Z

fourteen

http://grammar.yourdictionary.com/punctuation/what/fourteen-punctuation-marks.html