BB housemates compete in Battle of the Brains
The 'Big Brother' are competing in the 'Battle of the Brains' task to gain control of this week's shopping budget
The 'Big Brother' housemates have been split into teams of boys and girls to compete for control of this week's shopping budget.
The contestants are facing off against each other for the 'Battle of the Brains' task which will test their intelligence this afternoon (14.09.11).
The first challenge sees them have to solve three maths sums with a twist - the digits that make up the answers are hidden in 'Fish Paste Barrels'.
However, Heaven Afrika can decide whether or not to enter the fish paste due to her vegan lifestyle.
The first team to get the correct answers will be crowned the 'Brainy Housemates' at today's Graduation Ceremony, while the losing team will be branded 'Pea Brains'.
At the graduation ceremony the 'Brainy Housemates' will be presented with graduation gowns and will then be asked to select a brain each from the 'Brain Chamber' which features a selection of the world's brightest brains such as Albert Einstein, Leonardo Da Vinci, Winston Churchill, Marie Curie, William Shakespeare, Ludwig van Beethoven and Joan of Arc.
The losing team will need to collect their 'pea brains' from the 'Pea Brain Table' and they must wear the humiliating head gear at all times.
The final game will see the 'Brainy Housemates' compete for the final figure for the shopping budget in a Q&A session and will be given £50 for every question they answer correctly, however, if they get a question wrong the incorrect housemate must spin the 'Wheel of Misfortune' and spill 'brain sick' over a 'Pea Brain'.