I'm counting favourite as a single so it's 4 as far as I'm concerned!
Buzz tracks / singles are hard to distinguish in this digital age and are often just the album version. Most of the time you don't even get a different cover. Favourite was released as a buzz track (album version) and then as a remix single. Then Masquerade was the first official single but sadly was only the album version. Both Favourite Shanghai Remix and Masquerade have edits but both were never released commercially.
Most fans will not buy a so called single if it is simply the album version which they already own on the various versions of the album. The industry is in such a mess. Record companies have not got a clue.
I wish record companies would release digital single bundles instead even if they are only 2 tracks like the 2 track CD singles common in Europe back in the day.
I have just listened to the preview of Running With The Night on iTunes Australia and I cannot really here anything different. It is shorter and is only 3.12.