Actor Arjun Kapoor, who is always seen in an ebullient spirit, seemed to be in a pensive mood when he brooded over how life is full of "what if's and if only's".

The `2 States` actor took to micro-blogging site Twitter to share his views.

`Some questions remain unanswered forever... life always remains full of what ifs and if only's... You dwell... And you try and move ahead,` Arjun tweeted.

Meanwhile, the actor is all charged up to be a part of filmmaker R. Balki's upcoming romantic film "Ki and Ka", which also stars Kareena Kapoor Khan.