"We only use something like 10 percent of our brain, anywhere between 5 and 15 percent—I don't know what the current estimates are," as vos Savant told the reference book Newsmakers. In her view, humans are capable of much more. But motivation is the key: "So how much of a role is motivation playing day-to-day, when we are talking about much smaller differences? And is it measuring, perhaps—this is just a wild, out-of-the-blue kind of a guess— does it measure one person using 17.7 percent of their brain versus some one person who uses 17.8 percent? Is that what I.Q. does?
Don't think too hard or you'll never solve these logic puzzles and riddles. The answers to all 187 are easy once you catch the tricky wording. How can you tie a knot in a napkin by holding one end in each hand without letting go of it? Impossible, you say (or your friends will say, if you bet them). But: Cross your arms and hold a tip of the napkin in each hand. When you uncross your arms, the knot will be formed! Now try this riddle: I climbed up a cherry tree, where I found cherries. I did not pick cherries, nor did I leave cherries. How can you explain this? Answer: I climbed up a cherry tree with two cherries in my hand.
Can quantum operations, recombinant shapes, and concealed distribution actually lead to fun? Sure they can! Just try these optical illusions, mechanical aptitude puzzles, maps and mazes. "Selections are interesting."
