It is possible that the child, which is Donald, is suffering from Dyslexia.
Dyslexia is a case wherein a person has trouble matching the letters that they see including the sounds that those letters and the combinations it makes. Dyslexia does not choose age. It can be suffered by an adult or a child. But, we must take note that Dyslexia has no connection to the overall intelligence of an individual dyslexic person. Yes, they have difficulty in reading but they have the intelligence to be a much better reader.
A one way mirror in front of the mystery writers, with the mirror facing the audience would work best.
The answers Operant behaviors
Answer: Ming Dynasty
What China was called at the time that Christopher Columbus discovered America?
Well first, Christopher Columbus discovered America in 1492. In 1492 was also the Ming Dynasty that lasted from 1368-1644. At the time China was one of the the world's largest, richest, and oldest civilization. Hence, China at the time of Christopher Columbus's was called the Ming Dynasty.