Identify W, X, Y and Z.
W : An edible liquid miscible in water
X : A non-edible, inflammable liquid that floats on water
Y : An edible, coloured liquid that does not flow easily
Z : A colourless, non-inflammable liquid
| W | X | Y | Z | |
| A | Lemonade | Coconut oil | Milk | Petrol |
| B | Vinegar | Kerosene | Honey | Water |
| C | Coconut oil | Kerosene | Honey | Milk |
| D | Sunflower oil | Mustard oil | Milk | Kerosene |