The quiz master would then pounce, asking for a date and who it's by.

ECONOMIST: London's National Gallery

You need a great quiz master, a cracking format, and a wonderful revelation.

BBC: Liar

The quiz-master's conclusion is that the boy is cheating, and he enlists the cops (who are just as incredulous and just as affronted by the boy's audacity) to extract a confession that he'd worn a wire or had had access to the questions.

FORBES