In heraldry, what colour is gules?
What metallic element appears in the title of a play by Tennessee Williams?
Lead | Copper | Tin | Iron
In Star Trek, what colour is Mr Spock's blood?
Green | Red | Blue | Purple
What colour is the blood of cockroaches?
What colour was the owl and the pussycat's boat?
Apple red | Carrot orange | Pea green | Banana yellow
Is colour blindness more common in men or women?
Men | Women
What colour berets do the United Nations peacekeeping forces wear?
What colour is a Welsh poppy?
Red | Yellow | Purple | Blue
What colour does litmus paper turn in the presence of acid?
Red | Green | Blue
What colour are copper sulphate crystals?
White | Red | Yellow | Blue
