A doctor is sent to a nursing home to test the minds and memories of the residents. To save time, she interviews them in groups of three. The first group she meets with consists of bazza-spark,
@bright_Spark and
@Ind spark.
Turning to bazza-spark, she asks, “What’s nine times thirteen?”
“That would be four hundred and six,” he replies.
Without giving any indication that his answer is wrong, she turns to the bright_spark. “What do you think, sir? What’s nine times thirteen?”
“That’s easy,” he says. “It’s Thursday.”
She turns to the Ind-spark and says, “Nine times thirteen?”
He answers immediately. “One hundred seventeen.”
“Excellent,” says the doctor. “How did you get it so quickly?”
“Simple,” he says. “I just subtracted four hundred and six from Thursday.”