The housemates can also lose points during the '100' task if they give into temptations and offers from Big Brother.
[Big Brother Photo Gallery - Day 20]
Copyright: Channel 5
Each time the housemates win a point a red ball will be dropped into a container in the living area. The balls will be taken away if they lose points.
Tasks across the week will include the Scales of Sacrifice, which involves matching a weight on scales with their own possessions. However, any items they use to match the weight will be taken out of the house forever. The heavier the weight they target, the more points they will gain.
A non-smoking housemate will be given the chance to ban cigarettes for everyone to win points, while fast food burgers will be offered to a number of housemates as temptations that will lose points.
Other temptations will include a phonecall from a loved one, a party and a BB Beauty Salon.
There will also be a Gunge Task challenge, which will involve the nominated housemates guessing who put them up for eviction. If they pick people correctly, the housemates will get gunged and they'll win points for the house. If they're wrong, they will gunge an innocent housemate and they'll lose points.
Lydia Louisa and Deana Uppal are the two housemates facing eviction this weekend.
Big Brother continues daily on Channel 5.