How did they pick the dragons?,They invest and tit fails - what happens,How do you sort out the finances?,What is the most useful invention?,What type of inventions are created?,What type of inventions did inventors cr,Why do they not dress as dragons?,What stuff do you make?,Is the elevator real in the show?,Why this topic?,Why are the Dragons so moody?,Why do the Dragons have a budget?,Why is it called Dragons' Den?,What is the most famous invention?,How do the contestants get on the show?,How do you pitch an idea?,