"..I think the problem, to be quite honest with you, is that you've never actually known what the question is. "Yes," said Deep Thought with the air of one who suffers fools gladly, "but what actually is it?"

A slow stupefied silence crept over the men as they stared at the computer and then at each other.

"Exactly!" said Deep Thought. "So once you know what the question actually is, you'll know what the answer means."

Hitchhiker's Guide To The Galaxy