Self-Referential Aptitude test (brain teaser)

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Clever puzzle! Yeah, post the answer, but not yet, give us a couple weeks to work on it.
 
Oldfart said:
Clever puzzle! Yeah, post the answer, but not yet, give us a couple weeks to work on it.

Ok. Yeah, it's a tough one.
 
You can always post the answer within the "spoiler tags" and then people can view it as they complete the puzzle.
 
Ok


Here you go

1.D 2.A 3.D 4.B 5.E 6.D 7.D 8.E 9.D 10.A 11.B 12.A 13.D 14.B 15.A 16.D 17.B 18.A 19.B 20.E
 
Got it.

1D-2A-3D-4B-5E-6D-7D-8E-9D-10A-11B-12A-13D-14B-15A-16D-17B-18A-19B-20E

At least mine matches Galteeth's, so that's a good sign.

Oh, he posted the solution, so that's an even better sign.
 
BobG said:
Got it.

1D-2A-3D-4B-5E-6D-7D-8E-9D-10A-11B-12A-13D-14B-15A-16D-17B-18A-19B-20E

At least mine matches Galteeth's, so that's a good sign.

Oh, he posted the solution, so that's an even better sign.

Cool, how did you solve it?
 
#7 and #8 are the key questions. It bothered me to have more than one correct answer to #7, yet choose only one of them based on #2 (6 and 7 were the only two left that could possibly be identical). I would have liked #8 to be A or C instead of E. Yet it didn't bother me to pick an answer to #19 based entirely on other questions.

But, once I got to the point of counting how many times I chose each letter, it became pretty clear that #8 had to be E. In fact, I had to change my answer from C to E when C became impossible and got lucky that #7 was correct (and #2 and #6 and #17) regardless of which way I went. But, even not being sure of the answer to #8, the answer had to be an even number, which helped answer other questions.
 
Oh god..It is really a tough one..I can't answer all question but can some of them..The questions are too tricky and needs good intelligence..I like it..