General Intelligence (G) Training
These IQ tests and puzzles combine the majority of intelligence factors for overall general intelligence training. Use the free online exercises/tests selectively for your own training purposes.
IQ Test Training
Mensa Workout. 30 questions. 30 minute time limit. Scoring free. Not normed. Take the test.
General Brainteaser Training
Jim Loy’s Puzzles. Explore the puzzles. (This is an excellent resource for combining with your dual n-back training.)