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