The Knicks face a severe challenge during the off season.

The combat course is the most severe physical challenge I have ever experienced.

At present, we face such severe challenges that it's perhaps time to put party politics aside.

Today, of course, our economy is facing severe challenges from globalization.

The bidding would be a severe challenge to anybody using standard methods.

And aid officials acknowledge that it is a severe challenge.

But the numbers suggest, too, just how severe the challenge is.

The author's faith and purpose have seen him weather severe challenges to health.

Still, it is the Europeans that face the most severe challenges in the new environment.

Now let me concentrate on three questions which will raise a more severe challenge.