Please evaluate these questions

Hi teachers,
‘Did Dinon come into this shop?’ Felix asked.
‘Dinon,’ the shopkeeper said slowly. ‘What did he do? Wait a minute. Yes! Did he write a book about the old
President?’
‘He killed the President,’ Adam said. ‘He murdered him.’
‘Oh yes,’ the shopkeeper said. ‘I remember now. It was a good book. But the President’s murderer did not come into my shop this morning.’
Felix watched the shopkeeper’s face carefully. ‘My question,’ he said, ‘asked about Alex Dinon.’
The shopkeeper looked at Felix and smiled slowly. ‘That’s right,’ he said.

1. At first, who did the shopkeeper say Dinon was? A writer.
2. Who did Adam say Dinon was? The President’s murderer.
3. Did Felix examine the shopkeeper’s face casually? Explain your answer.
No, he didn’t. He did it carefully.

I'm not so sure about number 1 and I don't really know how to write another one from those paragraphs.

Thanks in advance.