Here the word "his" refers to Terah.
Sarai his daughter-in-law, his son Abram's wife
"his daughter-in-law Sarai, who was the wife of his son Abram"
Haran ... Haran
These are two different names and they are spelled differently in Hebrew. One refers to a person and the other refers to a city. (The "h" sound in the city's name is louder than the "h" sound in the person's name.) You might choose to spell them differently in your language to show this.
"two hundred and five years" (See: rc://en/ta/man/translate/translate-numbers)