Then there is a problem...

You're just running away from life's problems.

There's a problem there that you don't see.

Where is the problem?

Therein lies the problem.

If you don't want to put on sunscreen, that's your problem. Just don't come complaining to me when you get a sunburn.

Who doesn't know this problem?!

The key question is not what can I gain but what do I have to lose.

His essay gave only a superficial analysis of the problem, so it was a real surprise to him when he got the highest grade in the class.

Hi, I just wanted to let you know that the problem is fixed.

Institutionally, a major restraint is the copyright problem.

The whole world needs to tackle the problem of climate change together.

This problem is the clash of the idol's and obsessive fan's egos.

However, that involved a mountain of previously unconsidered problems.

On TV someone with a serious look on his face is talking about the problems of our country's future.

This might not have anything to do with the problem at hand.

If it was just a book the Space Police wouldn't be sticking their noses in. The problem is that it's a bundle of super technology.

The problem quoted isn't one, but there are problems in the reading section that ask you to distinguish relative pronouns from relative adverbs.

In the official question collection it is explained as being "passive voice of the present continuous tense".

I'm a high school graduate so I am that much able to answer high school problems and such.