The four finalists tackle a series of difficult questions and practical challenges.

In some ways, the suits will face similar legal and practical challenges, legal experts said.

Therefore, in his view, "leadership is a practical challenge that's bigger than the leader."

On the other hand, it is a practical challenge to a man's courage and personal integrity.

"This is the practical and moral challenge of our time."

Lou's job loss, it seems, has merely created a series of practical challenges.

The practical challenges of creating such massive pieces are daunting.

There are numerous practical challenges to the implementation of indigenous education.

Every time someone suggests a project, he envisions the practical challenges.

These are the practical challenges to which we want to respond.