Which of the following are fruits and which are vegetables, from this list: Tomatoes, Carrots, Onions, Broccoli, Mushrooms, Cauliflower, Cabbage, Chives, Grapes, Sausages?

Most authorities place Tomatoes, and Grapes in the fruit category, while Carrots, Onions, Broccoli,  Cauliflower, Cabbage and Chives are definitely in the vegetables category. 

And be aware of the trick item on the list: Sausages belong in neither category? That is a type of meat. And as for Mushrooms, they are actually a fungi but most frequently categorised in the "vegetables" section.