During a radio appearance this week, Boris Johnson dismally failed an IQ test, only days after saying the population is divided between the dunces who do terribly in IQ tests and the geniuses who pass them with flying colours. Harry Mount compiled some typical questions so you can find out which one you are. These are the answers the questions are on my Facebook.

ANSWERS
1. B, Third.
2. D, Pacific Ocean.
3. The match.
4. D, Flower is the only object that isn’t man-made.
5. Whatever your name is.
6. C, V.
7. E, Friday.
8. A tree.
9. A, True.
10. An hour.
11. B, Plutocracy.
12. B, False.
13. Potato.
14. B, Marmalade.
15. Mary.
16. The Moon.
17. Tiffany. All the names’ first syllables fit into the song, ‘Do-Re-Mi’.
18. A beetle.
19. Neither is right. Two plus two equals five isn’t right, or correct, and your left hand is not your right.
20. Take the ‘s’ away.
21. Daughter-in-law.
22. One of them was pregnant.
23. The word ‘wrong’.
24. Two — the rest have paws.
25. Your in-laws.
26. Nine sheep.
27. There isn’t any steam — it’s an electric train.
28. Waterfall.
29. Happy Birthday.
30. None — it was a hole.
31. It was during the day.
32. It was a bungalow, no staircase.

HOW DID YOU DO?
22-32 correct answers: Congratulations, Superbrain —your IQ is off the charts. You are among the chosen few, destined for a stellar career and blessed with a stellar intellect.
12-21: Not to worry. You are a mere mortal, much like the rest of us. Not stupid, but not a intellectual powerhouse either.
0-11: Don’t be disappointed. You’re in control of the most important, happening city in the world. And there’s every chance that, if all goes to plan, you’ll soon be moving into No 10 Downing Street.