Add a scroll bar on the drop downs. I couldn't figure out what was going on there for awhile. Once I discovered there were other options that I couldn't see things became much easier logically. However, when I pressed the down arrow it would change all the answers in the column - causing me to have to resolve multiple logic problems over again. Usually I would forget that I had to re-correct them to begin with and would get the answer wrong multiple times before I realized the error.
Aside from that, it was a decent logic game. Different than any that I've ever played so it was enjoyable. But the controls had me on the verge of quitting many times. For that reason I couldn't go any higher than a 3/5.