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