How old can Bengal tigers get?

Well I know that the Bengal Tiger will be able to leave their mother at about 2 years old. I'm not sure if that is when they are considered an adult though. So if you need the answer for this question then you probably shouldn't go by this but i'm not positive. :( :) But i'm pretty sure that THE BENGAL TIGER IS AN ADULT WHEN IT TURNS 2 YEARS OLD!!! Thanks! Remember Jesus Loves you! :)