Housemates competed in 'The Perfect Pair' task. This task was based around a number of knock-out rounds between pairs, through several elimination stages, with the winning pair at the end receiving a $30,000 grand prize. In the first round, it was Priya and Katie versus David and Sandra. They had to guess whether the rest of their fellow Housemates would say "Yes" or "No" in response to a series of questions or dilemmas. David and Sandra progressed to the next stage. Aisha and Lawson played against Skye and Lisa in a task where they had to guess the reason for the line-up of the Housemates in the garden. This line-up would always correlate "Most" to "Least" likely (to...). Aisha and Lawson progressed to the next stage. Jake and Gemma were involved in a knock-out round between Cat and Travis. The women from each pair had to sit with their backs to their partner, wearing headphones to ensure they could not hear anything. Their partner meanwhile had to make up a profile of them, guessing things such as who their ideal man was and what their guilty pleasure was. Once they had locked in their answer, the women - who had to make their own decision whilst their backs were turned -, had to reveal their answer. If their partner got it right, the pair would earn one point. In the end, Jake and Gemma were the winning pair, progressing to the next stage.