How much weight can a grown man lose in 12 days?

So here is my challenge to you... Guess how much weight I am going to lose over a period of 12 days.
Current weight 121Kg (roughly, will give a more accurate weight on the starting day)
I will be working out at the gym every day (Cardio every day, weights 3 times a week)
Keeping Calorific content low
Snacking on yoghurt and rice crackers 3 times a day
Drinking lots of water
Avoid ALL alcohol, snacks
Period: Monday 17 August 7AM - Friday 28th Augest 7PM
Results will be ratified by my wife, who never lies.
Current weight 121Kg (roughly, will give a more accurate weight on the starting day)
I will be working out at the gym every day (Cardio every day, weights 3 times a week)
Keeping Calorific content low
Snacking on yoghurt and rice crackers 3 times a day
Drinking lots of water
Avoid ALL alcohol, snacks
Period: Monday 17 August 7AM - Friday 28th Augest 7PM
Results will be ratified by my wife, who never lies.