General Knowledge Quiz - Thursday 28 November

1/. Who is the 37 year old Mayor from Indiana who has just taken the lead for the Democrats in the push for the 2020 Presidency? 2/. What is a polygon with eight sides called? 3/. What has Prince Andrew said he will do in the past week? 4/. What is the name of the river that runs through the Iraqi city of Baghdad? 5/. If Donald Trump is successfully removed from office via impeachment, who will take over his job?