This is an interesting article on "functional fixedness". I find that working in this trade, almost every day I am challenged to find novel, unique solutions to problems that are at the same time code compliant. This counts double for service work/TI. I think the type of intelligence needed to solve the problem presented in this test is one we use every day as part of our job description. It is telling that in most cases, a minority of people presented with such problems had the IQ and most of all creativity to solve it in a satisfactory manner. Maybe this type of intelligence should be tested for in apprenticeship programs, alongside an aptitude for math and spinning wirenuts
http://en.wikipedia.org/wiki/Functional_fixedness
