The solution to the following puzzle is unique; in some cases the knowledge that the solution is unique may actually give you a short-cut to finding the answer to a particular question, but it's possible to find the unique solution even without making use of the fact that the solution is unique.

1. The first question whose answer is B is question

2. The only two consecutive questions with identical answers are questions[A]1

[B]2

[C]3

[D]4

[E]5

3. The number of questions with the answer E is[A]6 and 7

[B]7 and 8

[C]8 and 9

[D]9 and 10

[E]10 and 11

4. The number of questions with the answer A is[A]0

[B]1

[C]2

[D]3

[E]4

5. The answer to this question is the same as the answer to question[A]4

[B]5

[C]6

[D]7

[E]8

6. The answer to question 17 is[A]1

[B]2

[C]3

[D]4

[E]5

7. Alphabetically, the answer to this question and the answer to the following question are[A]C

[B]D

[C]E

[D]none of the above

[E]all of the above

8. The number of questions whose answers are vowels is[A]4 apart

[B]3 apart

[C]2 apart

[D]1 apart

[E]the same

9. The next question with the same answer as this one is question[A]4

[B]5

[C]6

[D]7

[E]8

10. The answer to question 16 is[A]10

[B]11

[C]12

[D]13

[E]14

11. The number of questions preceding this one with the answer B is[A]D

[B]A

[C]E

[D]B

[E]C

12. The number of questions whose answer is a consonant is[A]0

[B]1

[C]2

[D]3

[E]4

13. The only odd-numbered problem with answer A is[A]an even number

[B]an odd number

[C]a perfect square

[D]a prime

[E]divisible by 5

14. The number of questions with answer D is[A]9

[B]11

[C]13

[D]15

[E]17

15. The answer to question 12 is[A]6

[B]7

[C]8

[D]9

[E]10

16. The answer to question 10 is[A]A

[B]B

[C]C

[D]D

[E]E

17. The answer to question 6 is[A]D

[B]C

[C]B

[D]A

[E]E

18. The number of questions with answer A equals the number of questions with answer[A]C

[B]D

[C]E

[D]none of the above

[E]all of the above

19. The answer to this question is:[A]B

[B]C

[C]D

[D]E

[E]none of the above

20. Standardized test is to intelligence as barometer is to[A]A

[B]B

[C]C

[D]D

[E]E

First 10 respondants with the correct answer sent to my livejournal email address will get a personalized postcard from yours truely, recognition from readers of the pjammer chronicles as a smart cookie, and other fun prizes.[A]temperature (only)

[B]wind-velocity (only)

[C]latitude (only)

[D]longitude (only)

[E]temperature, wind-velocity, latitude, and longitude