an interesting puzzle

[Don Shepherd]

(03-14-2017 11:46 PM)SlideRule Wrote:  

(03-14-2017 10:20 PM)Don Shepherd Wrote:  no[/size]

from Oxford Reference
odd-one-out test
QUICK REFERENCE
A type of intelligence test item or subtest in which the respondent has to choose which of several alternatives is the odd one out. A typical (difficult) example is ... Although various choices could be justified, the ‘correct’ answer to this item is ... because ... and all the others are ...
A simple no comes across as a bit 'short', no? Perhaps a tiny complimentary clue for others, since I assume this exercise is primarily for giggles and grins?

BEST!
SlideRule

Sliderule, yeah, it's just for fun, like all puzzles. I didn't mean to be short, and who is to say what is right and wrong? Not moi, certainly. I didn't select the "correct" answer either, I said it must be the green one! But then I read the official answer and it did make sense.

I just got the book in the mail today and there are many interesting puzzles in it. In one of them, you have to figure out a rule for generating a number, and there is an obvious rule that works for all of the examples until you get to the very end, and then it doesn't work, so you have to go back and find the real rule which is not so easy to guess as the first rule you made (now I'm confusing myself!).

Anything that makes you think is a good thing. That's why IBM's motto is what it is.

Don