christened John, etc
Jeffrey Archer's "False Impression":
Anna smiled and, turning to Nakamura, said,"This is my friend, Jack Fitzgerald Delaney"
"No doult christened John," suggested Mr. Nakamura as he shook hands with Jack.
"Correct, sir"
"Names chosen by an Irish mother, or perhaps you were born on the twenty-second of November 1963?"
"Guilty on both counts," admitted Jack.
"Very droll"
question:
1. christened John,
2. why the name is chosen by an Irish mother
3. why " born on the twenty-second of Nov. 1963"
4. what does "both counts" mean here
5. droll?
thank you for you help