In heraldry, what colour is gules?
What metallic element appears in the title of a play by Tennessee Williams?
Iron | Lead | Tin | 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?
Carrot orange | Banana yellow | 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?
Purple | Blue | Yellow | Red
What colour does litmus paper turn in the presence of acid?
Red | Blue | Green
What colour are copper sulphate crystals?
Blue | Red | White | Yellow
