In Star Trek, what colour is Mr Spock's blood?
Green | Blue | Red | Purple
When measuring blood pressure, which is the higher number?
Systolic | Diastolic
What colour was the owl and the pussycat's boat?
Apple red | Carrot orange | Banana yellow | Pea green
Is colour blindness more common in men or women?
Women | Men
What colour is a Welsh poppy?
Purple | Yellow | Blue | Red
What colour does litmus paper turn in the presence of acid?
Blue | Green | Red
What colour are copper sulphate crystals?
Red | White | Yellow | Blue