In heraldry, what metallic colour is argent?
In Star Trek, what colour is Mr Spock's blood?
Red | Blue | Green | Purple
What colour is the blood of cockroaches?
What colour was the owl and the pussycat's boat?
Carrot orange | Pea green | Banana yellow | 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?
Green | Blue | Red
What colour are copper sulphate crystals?
Blue | Yellow | White | Red
