I discovered a bug with one of the questions. Classic movies category.
"Who portrays the deranged motel owner in Pyscho?"
My choices were Anthony Hopkins, Anthony Quinn, Anthony Perkins, and Anthony Quayle. I made a choice and was told the correct answer was Errol Flynn, which was none of my choices. I looked online the correct answer, and then used the back button to check all the answers. The correct answer works. I picked a wrong answer, and for some reason all the wrong answers for that question says Errol Flynn is the correct answer. Even thought the correct answer is working properly, I thought I should report this bug.
Edit note: I just encountered that again with the question: "Who was the male star in Deep Throat?" Again all the wrong answers say the correct answer is Errol Flynn.