What is the name of the father ??
If the mother’s name is 57….
So the mother’s name is literally 57 .
Likewise:
Son’s name = 47
Daughter name = 37
Then the last sentence ask :
What is the name of the father ?
The father’s name is “What” because the senftence literally says:
” What is the name of the father.”
ANSWER:
The trick is in the wording it says.