my iq is 135, mensa member

The main issue isn't with the question though, flawed as it might be, the issue is if you know that information or not does that mean you have a more capable brain than someone who happens to have gone through life without encountering this object or information about it? This to me makes IQ tests less a true measure of persons capabilities mentally but more of a pub quiz level of knowledge, fantastic if you happen to know some of the things which happen to come up in your exam, but most certainly not something to be thought of having any indication of someones ability to learn or figure things out in the future or during their lives.

I don't mean to diss your knowledge of the Klein bottle though, I have been educated today! but like it was mentioned by Einstein, if you learn off the contents of a dictionary, does that mean you are more likely to be able to put those contents into use with a problem than someone who happens to have a dictionary with them but knows not what it contains, but how best to use the dictionary to find information that he needs to deal with what he encounters.

The last aptitude test I took, many years ago, I scored in the 99.98th percentile.  But I don't put a lot of emphasis on these tests. There is no univeral number rating for intelligence. 

1) Online tests are too easy to cheat on.  I don't mean deliberately cheat, because the poll is self-reported so you could just as easily lie about the results.  But more like, you aren't in a controlled environment with strict time restrictions, so it's very easy to make excuses for yourself ("oh I got distracted halfway through, I'll just retake it now"; "oh I used to know this, I'll just quickly Google this — would've remembered eventually").  Without the intention to cheat you could very easily delude yourself into thinking you deserve that higher score.  It's just not a fair comparison to a invigilated test where there's no compensation for screw-ups.

2) Online tests tend to have systemically inflated scores.  Think about it: standardized IQ tests are calibrated based on actual results applied across a large control population, and they derive value from perceived neutrality and reliability.  But where do online IQ tests get funding from?  In most cases, ads.  So a site that tells 30% of visitors that their IQ is genius level 140 and encourages them to share the results with their friends (or click here to see your full results) is going to be more successful than one that tells people the truth, and no organization is ever going to call them on it.

That's not to say there can't be some good online tests, but it was probably easier for the OP to just exclude them as a whole.

It isn't a muscle though.

Also everyone uses their brain every day, without using it you would not be able to breath or.... anything, sure you can make certain areas of the brain become more skilled at certain tasks which you repeat over and over again not unlike a CPU caching certain code, but that doesn't require a high IQ to do, nor does having a higher IQ mean you will be proficient at things in a general sense.

You don't put emphasis on a test you took many years ago, but remember your results to that degree, I'm impressed, I would have a hard time remembering my exact score on qualification exams I took within the past year, other than those I scored 100% in of course.

I meant, 'Like' a muscle. The more you use it the better it gets. 

Oh come on you know that when I said not using it I didn't mean not using it AT ALL I mean not using it in an educational setting, learning mathematics etc, I shouldn't have to explain that. 

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It doesn't require a high IQ to learn, but when you learn you gain a higher IQ because your brain is used to learning new things. 

I have an extremely good memory.  I also remember the result especially well, because the school made a big deal about it.  I had just finished second in a national math competition earlier that year.

I did an IQ test once, and it was when I was 12 and I scored around a 100 - 110 I can't remember the exact number. I don't know how I would score now though, so I just put see results.

I wouldn't put too much emphasis on IQ tests since there is some cultural bias going on and there is also some serious bias that goes with how much education each individual has too ...