The Geek Quiz question “Who invented the light bulb” is full of baloney! The answer you chose, Sir Humphrey Davy is wrong. His invention was the arc lamp, not the light bulb. Huge difference and clearly worded to mislead readers into choosing the wrong answer; which you do often, not sure why.
If the question were “Who invented the first electric light?” then Davy would be a good answer. The arc lamp is as different from the electric light bulb as a truck is from a wheelbarrow.
F.Y.I: I often see problems with the quiz, you should allow people to comment directly on it or have a dedicated category for people to comment.