105 he left the house after 20 Days, because he was discriminated by the other housemate Robert like he stated in an interview with a priest. Weekly tasks Every Tuesday the Housemates got a task from Big Brother, which they had to complete until Monday. The housemates had 26 weekly tasks. They passed 18 and failed 8. Whitebox challenge Once or twice a week one of the housemates has to participate at a Whitebox Challenge, where he can win prizes for the team (e.g. beds or more Cooking-Time) or lose them (The Couch or he has to choose one housemate, who gets a cigarette or cosmetics ban for one day). Big Brother Song Contest On Day 176, Big Brother held the Big Brother Song Contest, where each of the housemates had to sing the song they recorded for the Big Brother 10 album. As Marc and Natasha, entered the house after the recordings took place they were exempt from the task. The audience decided which of the performances was the best. The famous German party duo Die Atzen was the panel. The winner could choose one of three prizes: A normal package with cigarettes, shower coins, and alcohol. A surprise package, which could only be shared with the winner and four other housemates. Whoever the winner nominated would receive two votes against them. As the winner, Klaus chose to receive the surprise package. Special events Day 2 Horst left the House, because he could not talk to the housemates Harald and Carlos without thinking of their Disease HIV. Day 12 Cora originally left the house on Day 12 due to issues with her work, but resolved them and asked to return. Following a public vote, Cora was allowed to return to the house on Day 15. Day 14 On Day 14 the Housemates of the Secret House, moved to the Main House after Secret House was no longer in use. Day 16 After the live-show the Pisei and Micaela left the house, because of the harder rules of Big Brother. Day 44–45 On Day 44 Iris has to go to the penalty area, because of destroying a microphone, talking without the microphone and sleeping outside the sleeping times. In the night she left the penalty area without the permission of Big Brother. The next morning she had to make a decision: Either she would go back to the penalty area