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