For those struggling with the question. The answer is in the original story. paragraph 3. I even put it in bold for you.
I was asked why there’s a bloody stupid question to answer anyway..
The answer is we are legally obliged to ask one. Yes, really.
To run a raffle where you just buy a ticket and that’s it is to technically operate a lottery. To operate a lottery you need to jump through a lot of hoops in order to get a lottery operating licence.
The legal way around this is to run the competition as a ‘game of skill’ for which a lottery licence is not needed. Asking a question that must be answered correctly in order for your entry to count makes it a game of skill and not a game of chance – legally that is.
Also, there needs to be a free to enter option, which is why you can enter for free by sending the answer to the question to us through the post. If you do that and you answer the question correctly we are obliged to add you to the list of correct entries.
So long as we follow those rules we are are not operating a lottery for which a licence is required.
Hope that explains things 🙂