A really difficult Riddle game !!!

Het guys I'm new here. I am happy to say that i recently developed a very hard riddle game. You will find the interface very simple but the riddles are for people who like to use their brain. For somenone who wants to give it a try, the name of the app is "Abstract : A Riddle game". Thanks guys, it's nice to be a member of this forum. I am waiting for some feedback.