Erm, sorry chap that's a period life table, not an expectancy table. It's remaining years, not total. If you scroll down eventually years remaining < age. Unless you count reincarnation no 80 year old is dying before their first birthday.

Assuming you mean the expected remaining life, then yes. And you must mean that, because the other "obvious" meaning makes no sense.

I think you have to sum the age and expectancy. Otherwise that table makes no sense.

Death probability is the lowest for 10 years old kids: 0.01% in that year.