Check out my riddle game. opinions appreciated

Hi,

I developed a simple riddle game a few months ago. I am fairly satisfied with it as it is doing between 30-50 downloads a day.

I would appreciate if any of you could check it out and rate/review it if you feel like it.

But more importantly I would appreciate any comments or opinions on what can be improwed or what you liked/disliked.

thank you

link is here: https://play.google.com/store/apps/details?id=com.sam.riddles1000

Here is my review JumblyApps