<div>How do you milk a potato? Can you survive on a potato-only diet? Why do potatoes make daughters-in-law cry? </div>

18: Olives

From the makers of QI and No Such Thing As A Fish: Gastronomically-minded QI researchers Jack Chambers and Manu Henriot join chef and food writer Rosie MacKean to unpack the world of food and drink, one lunchbox at a time.

Can you unboil an egg? Why would you milk a spider?  How much Dairy Milk would it take to kill you? Dig in now to get answers to the questions you never knew you had.