1. Fact or opinion? We are in a school.

2. Fact or opinion? I think that classical music is boring.

3. Fact or opinion? August follows July every year.

4. Fact or opinion? 16-year-olds should be eligible to vote in a general election.

5. Fact or opinion? Orange juice seems much tastier than apple juice.

6. Fact or opinion? Sunderland is a better football team than Newcastle.

7. Fact or opinion? It is a long way from here to Germany.

8. Fact or opinion? It’s a wonderful day!

9. Fact or opinion? Earth is a planet, not a star.

10. How accurate and reliable? ‘In 10 to 20 years’ time, we will be able to build new organs artificially and replace an organ with something synthetic.’ Dr Tom Okarma, President and Chief Executive, Geron Corporation, California

11. How accurate and reliable? ‘There will be a permanent lunar base and a manned exploration of Mars some time this century.’ Martin Rees, Royal Society Astronomer, Cambridge

12. Authoritative statements ‘I think there is a world market for maybe five computers.’ Thomas Watson, Chairman of IBM, 1943

13. Authoritative statements ‘The world potential market for copying machines is 5000 at most.’ Response from IBM to the founders of Xerox, 1959