For me.... try to survive each day, try to keep with live, and think deeply.... What I will do when I get old? or What kind of future will I have at this world?

not only THESE DAYS but for all kind of eras! human always tries to find peace inside and outside! so you can call it biggest problem or biggest target or aim of life or anything!

There are millions of problems that people all over the world face. Poor people complain about a lack of money, rich people complain about being unhappy... However, the most immediate problem that I'm aware of is that many of my new friends on iTalki seem to lack confidence in their English.

I thinks the biggest challenge for every person is to find a partner that fits you perfectly. I mean for living together like a couple. And also find something that you really are born to do and to be strong enough to start do it.

i dont know whats the biggest problem that an individual face in life these days...but i know human is the biggest problem in the world,human destroy the environment every day.nowadays the environment is becoming changeable and even kill people.In other hand,people just focus on the important of protecting environment.in my opinion,it is foolishness