Answers to six immediate questions you might have about the art world after a crypto entrepreneur spent millions on a 35-cent fruit.

A piece of conceptual art consisting of a banana duct-taped to a wall has sold for $6.2 million at an auction in New York

Maurizio Cattelan's provocative artwork of a banana duct-taped to a wall has fetched $6.2m (£4.9m) at Sotheby's in New York - four times higher than pre-sale estimates. The auction house says Chinese cryptocurrency entrepreneur Justin Sun outbid six other rivals to get the "Comedian" installation of the Italian visual artist on Wednesday.