In heraldry, what metallic colour is argent?
In Star Trek, what colour is Mr Spock's blood?
Purple | Red | Green | Blue
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?
Women | Men
What colour berets do the United Nations peacekeeping forces wear?
What colour is a Welsh poppy?
Yellow | Purple | Blue | Red
What colour does litmus paper turn in the presence of acid?
Blue | Green | Red
What colour are copper sulphate crystals?
Yellow | Blue | Red | White
