Sam and Amanda passed a challenge set by Big Brother this evening.

The pair were called in to the diary room as the rest of the housemates watched them on the plasma screen in the living area.

Big Brother informed the sisters that they would be given a postcard from Jonty's 'Munkety Tunkety'. On that postcard would be clues to his location which they would have to guess.

As the twins read aloud the card Carole yelled: "It's Blackpool! They know that one!"

The twins successfully guessed that 'Munkety Tunkety' was 'visiting' the seaside resort and were rewarded with Blackpool rock.

Inspecting the sugary goodness, Sam yelled: "It says Blackpool on it!"

Big Brother replied: "That's because it's from Blackpool."