America doesn't do IQ tests. They mix general knowledge with a lot of other things.

An IQ test measures your ability to solve problems.

They use math, logic, spatial diagrams, patterns, words. Nothing to do with knowledge acquisition.

Mensa maintains that genius begins at 140. And that's 1% of the population. However, they also give you both a left brain test and a right brain test. You can choose.

So someone can be very good at detail but very bad at the big picture. In order to have the genius touch, one needs interconnection between the left brain and the right brain.

The latest research is that people who are highly intelligent/creative have a lot of synapses connecting all the areas of brain. This ties in with what Einstein's brain looked like. He had a lot of connectivity.

So you can be very good at a left brain activity like math, and you can score very high on that in an IQ test, but it doesn't mean you see the big picture or connect the dots.

So you can get really clever engineers who can't do a thousand things in other areas.

One of the things that highly intelligent people do is 'miss the easy ones.' Precisely because they can't see the catch. The questions are so easy that they think there must be something else.

It can, also, however, be the result of a learning disability. A learning disability is when one section of the brain doesn't work. So one misses some things.

Thanks for the typo note. :)