I was given an "odd man out" quiz, which definitely admitted more than one answer.
I have slightly modified it to make it even more ridiculous.
Please comment on the following set of numbers:
19, 33, 69, 72, 98
Choose the possible options for "odd man out" and justify your choices.
(In reply to re(2): starting out
by Ady TZIDON)
No, that doesn't meet my strict definition. That's just another way of saying 33 is the only palindrome.
You could say that 33 is the only one that IS NOT a non-palindrome, but I don't consider non-palindrome a real, constructive, affirmative property.
Composite, on the other hand, is a real. constructive, affirmative property that is something other than just non-prime. 1, for instance, is neither composite nor prime, which proves that composite is not the same thing as non-prime.
Yes, this is admittedly splitting hairs, but we are all agreed that this is a ridiculous question. I don't think it is quite as ridiculous as you do, however, as so far I only have one option for "odd man out". If this question was on a Standard Aptitude Test or a Mensa quiz, I would feel very comfortable going with 19 (the only one that is not composite) as the answer, and then moving on to the next question. So far, I have heard no other good options.