In heraldry, what colour is gules?
What metallic element appears in the title of a play by Tennessee Williams?
Lead | Tin | Copper | Iron
In Star Trek, what colour is Mr Spock's blood?
Purple | Green | Red | Blue
What colour is the blood of cockroaches?
What colour was the owl and the pussycat's boat?
Apple red | Carrot orange | Banana yellow | Pea green
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?
Yellow | Blue | Purple | Red
What colour does litmus paper turn in the presence of acid?
Blue | Red | Green
What colour are copper sulphate crystals?
Yellow | Blue | Red | White
