“Have you a message for anyone here?”
“No,” replied the plate promptly. Rupert looked around the table.
“It’s up to us; sometimes it volunteers information, but this time we’ll have to ask definite questions. Anyone like to start?”
“Will it rain tomorrow?” said George jestingly. At once the plate began to swing back and forth in the YES— NO line.
“That’s a silly question,” reproved Rupert. “It’s bound to be raining somewhere and to be dry somewhere else. Don’t ask questions that have ambiguous answers.”
George felt appropriately squashed. He decided to let someone else have the next turn.
“What is my favourite colour?” asked Maia.
“BLUE,” came the prompt reply.
“That’s quite correct.”
“But it doesn’t prove anything. At least three people here knew that,” George pointed out.