It is sweeter than honey. It is hotter than the sun. The king needs it, but a beggar has it. Whoever eats it, dies. What is it?
Nothing. Nothing is sweeter than honey or hotter than the sun. The King needs nothing, the beggar has nothing. Eat nothing and you die of starvation.
Two people both eat exactly half of a chocolate bar and nothing else, but one person eats more than the other. How is that possible?