I got the same error because i was attempting to print the arr while testing my solution. Once I removed the print the kata worked without issue.

Thanks, I think I fixed the random tests.

I see a test where r=6 and the answer is Sheldon, as expected. Not sure where you are seeing what you are seeing. I solved in JavaScript, maybe there is an error in a different language.

"IIV" is correct roman numeral format. To represet three you would use "III"

Added a three random test cases.

Please reread the instructions. You are looking for the number which is not like all the other numbers in the string in terms of evenness or oddness. In other words you are looking for the single odd number or the single even number.

eg:
iqTest("1 2 1 1") => 2 // Second number is even, while the rest of the numbers are odd

I got the same thing. What it means is that you need to make sure that obj not only has those properties, but that they are functions. obj.sayHoHoHo = true; should not count because it is not a function, it is a boolean. At least that is what I am assuming the issue is.