I have. It really wasn't that hard. I think if anyone has played the games a few times they will get most of the riddles. The hard ones were the ones that you had no idea what they were looking for.
All u have to do to share and get points is click share and click one of the options and it automatically gives you the points. At least thats what happened to me. I clicked share and then google and another window pops up and then the points are there before i even sign in to google+ to share. It should work.