Confused.com has released another ad in its 'Mind Tickling Confusions' campaign, inspired by everyday questions that tickle and amuse.

The 30-second spot, called ‘Clock Maker’, was created by Accenture Song UK, and opens with the question ‘How did the inventor of the clock know what time it was?’

In the film, we see the imagined inventor of the clock stumble at the final hurdle as he realises he can’t set the time. From this point, the film recounts the undeniably historically accurate answer of how that issue was resolved…

The film was directed by Vedran Rupic through Riff Raff.

The 'Mind Tickling Confusions' campaign kicked off earlier this year with the film ‘Piggy Bank’, which posed the question 'Why did we start keeping money inside pigs?'.