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