First you sell half of those eggs, plus half of one egg;

Then you sell half of the remaining eggs, plus half of one egg;

You then sell half of the remaining eggs, plus half of one egg

which leaves you with zero ( without having broken any eggs ).

Question: "How many eggs did you start with?"

Clara Ferrando, Albert Frank, Henk Gerdsen, Joshua Green, LW Luk, Chris Magson,

Valmai Osborne, Lauren Riley, Bernard Sojka, Steve Steppe, Luc Vingerhoets

and Brend Wesseling.