Do you know everything about shortbread?

Question or Hint Answer or Word

Name the three types of shortbreads petticoat tails,fingers and rounds.
Will it be softer when cooled or firmer? firmer
which country did shortbread originate from Scotland
Do you use plain flour or self raising flour Plain flour
What century did shortbread start to be prepared in 12th century
which queen was credited in the 16th century for shortbread Mary queen of Scots.
How many thirds of butter is there to flower 2/3rds