Questions like this are testing your general knowledge of current affairs. Similar questions might be along the lines of "Who is the Minister of the Environment?"

Make sure that you read a quality newspaper regularly. They won't be expecting you to take a particular line with these questions - almost any answer would be acceptable as long as it showed some understanding of the subject.

If you really don't know anything about the subject of the question, you are best to say this honestly and perhaps to then make some sound general points based on logic.

Sometimes the interviewer will take the opposite view to you. Here they are likely to be playing Devil's Advocate to see if you can stick to your guns and argue your case effectively!