the name of one of your parents
Para responder a "¿Cuántos años tienen tus padres?", puedes decir la edad de cada uno de ellos. Por ejemplo, "Mi padre tiene 50 años y mi madre tiene 48 años." Si prefieres no dar detalles, puedes simplemente decir: "Prefiero no compartir esa información."
'uno (minus, really 'menos' in Spanish) uno' = 'one minus one'
uno means one (1). It can also mean the indefinite article "a" or "an".
That translates to English as: "Name of one of the national representatives of the United States"
Uno minuto mas -One minute more
One for all. All for one
The word "uno" in Spanish means "one" in English.
Numeral uno means number one in Spanish. It also means roman numeral one in Spanish which is "I". Edit: "numeral uno" actually means "numeral one". But you probably meant to write "número uno" which means "number one". It does not mean roman numeral one.
One and are (?)
If you mean the subtraction, that would be "dos menus uno". If you mean a hyphen, to separate parts of a code, that would be "dos guión uno".
viente uno
Treinta y uno translates from Spanish to mean thirty one.