How Much To..?

The Game is simple. Each of the contestants are asked a question: how much to complete a certain task? They then have two minutes to name a price but if they go too high and their fellow contestants are cheaper, they have just priced themselves out of the game. The trick is to go high enough to win a good amount of money but low enough to ensure you are the winner. By the end of the bidding war, the person who is the cheapest contestant has to then go through, one by one, completing the tasks. No backing out allowed now... But who is running this game? And more to the point - why?!