Well those arent really the "real iq" test. As far as i know a real iq test is universal so you can take it, asia man can take, man in africa living in a cage can take it...

thats the real iq tests, no math or language skills needed really...

But yeah i agree that online tests arent the most reliable tests (even the ones that look ok), but its still the best test i took, the best place would be to go to your local mensa club and try a test there (or in any other place that is certificate to do so) but who has the time/(maybe money) or mainly interest to go to such places.