They replied, “The man questioned us carefully about ourselves and our kindred, saying, ‘Is your father still alive? Do you have another brother?’
When were these questions asked? I didn't come across these questions in Genesis 42. All Joseph said in Genesis 42:14-15
But Joseph said to them, “It is as I said to you. You are spies. By this, you shall be tested: by the life of Pharaoh, you shall not go from this place unless your youngest brother comes here.
But then Joseph asks out his father only in Genesis 43:27
And he inquired about their welfare and said, “Is your father well, the old man of whom you spoke? Is he still alive?”