I guess with the creation of phrases like "emotional IQ" and "cognitive IQ" even the research expressed its doubt that those tests can truly hold their promises. Freerk Huisken might be right in the end. He argued that it's a logical problem when one is trying to measure intelligence in artificial test as they can not retrieve the true capabilities of a human. Intelligence is a damn complicated subject and although we humans love to measure and categorize everything, we should consider that IQ tests are far from being comparable. Truth is, we still do not understand what intelligence actually is :)
This is actually a nice topic to discuss with philosophers.
We may not understand what intelligence is philosophically, but in the field of psychology, IQ/general intelligence/g factor is a statistical construct that isn't directly measurable but can be inferred by its correlation with measurable factors. https://en.wikipedia.org/wiki/Factor_analysis
When we look at the research we find that if we know someone's score on an IQ test(how well they solve made up problems) we find they tend to do a little better(on average) at life then people who aren't as good at solving made-up problems. This is not meant to be the full measure of a man, or supposed to tell us the answer to what intelligence is.(This is probably a question a bunch of tenured philosophers could argue about until the end of civilization :) ).
An intelligence test for groups of people would be a very interesting idea.
I came to conclusion that IQ tests and brain teasers are just bullshit (in the context above, that is). You usually expect an exceptional result of it, because really, in day to day life you usually complete much more challenges and give good solutions than, lets say, 90% of the population.