David must answer 15 Questions correctly from the 4 answers we give him. To make things easier he also has 4 50/50 lifelines--but there is a catch--each time he uses a 50/50 lifeline, it will cost him an item of clothing.
Answer a question wrong, the tank will unleash its gunge all over him, regardless of what he is wearing.
Looks fun, but I guess if I was in the tank I wouldn't get many questions right, I guess that be no fun if you didn't get messy, especially if you loose your clothes