Here's a link to a fascinating audit of your brainpower from creativity guru Michael Hewitt-Gleeson's School of Thinking.
For the fun of it, just give it a go!
My Personal Mission Statement: Providing a Smorgasbord of Creative Tools & Innovative Ideas for 21st Century Living (under the auspices of OPTIMUM PERFORMANCE TECHNOLOGIES)
"...Even with all the Navy's sophisticated hardware & computer systems, we're nothing without the human mind. Because, ultimately, the mind is the only computer we have that can make decisions for us..."(from Singapore Defence Ministry's series of targetted advertisment for its Navy, a vital force, in the 'Straits Times' & on MRT trains during the nineties)
"...unless we are taught to use our brains, unless we understand how our brains work & their relationship to intelligence, we may never even approach truly intelligent functioning. Within all of us is the potential for genius. It is there for us to develop, to explore & to enjoy."(Dr Win Wenger, author of 'How to Increase Your Intelligence' & the brain behind 'Project Renaissance')
"Develop your brain, because it has infinite capacity for expansion. Oil will run out, gas will run out, but brains will not run out."(S Rajaratnam, one of Singapore's founding fathers, first Foreign Minister & former Senior Minister, as reported in the Straits Times, 28th February 1992.)
"The brain can be developed just the same as the muscles can be developed, if one will only take the pains to train the mind to think."(Thomas Alva Edison, 1847–1931, considered one of the most prolific inventors in history, holding 1,093 patents; developed many devices that greatly influenced life around the world, especially the light bulb;)
"... the primal cause is mind. Everything must start with an idea. Every event, every condition, everything is first an idea in the mind..."(Robert Collier, 1885–1950, author of metaphysical books)