Yes, it's a problem when asked an open-ended question; I just usually bluff it with the standard answers: "I'm fine, thanks, how are you?" or if something interesting is happening to me mention that. Most of the time, people are just being polite; for example, if they arrive where you work and you are showing them to a part of the building they feel that they (or you) have to talk about something.
If it's any help, what I have done in recent years is read the BBC news page (you can use whatever is appropriate for where you live; e.g., CNN, Al-Jazeera) during breakfast. This is just for something to read, but it does give me an overview of topical things happening in the area, especially if there is a local news section as well.
Thus I will sometimes choose something topical but not too dangerous and say "Hey, did you see on the news that..."; for example, the recent storms are OK unless the person you are with talks about their home flooding; in which case go for something else such as the winter olympics; I steer clear of nasty" topical things such as Jimmy Saville or horrible murders, because many people don't want to think about them and I'm not exactly happy talking about such things myself.
It sounds pointless and in a way it is, but it serves a purpose of avoiding embarrassing silences. I just wish there was something better.
Last edited by IKnowWhoIAmNow on 14 Feb 2014, 7:50 pm, edited 1 time in total.