Apr 9, 2007
By: Caroline Latham
We are delighted to introduce you to Wes Carroll who has graciously created a few new puzzles to bend all those sharp brains out there! Keep checking back, as we will continue to release new puzzles regularly.
Wes aspires to the Renaissance ideal of excellence in multiple fields: he is the head of Do The Math private tutoring services, Puzzle Master for the Ask A Scientist lecture series, and an internationally touring performer and teacher of music. Find out more at wescarroll.com.
With no further ado, the first puzzle!
Party For Polyglots
Of the 100 people at a recent party, 90 spoke Spanish, 80 spoke Italian, and 75 spoke Mandarin. At least how many spoke all three languages?
Have you solved it yet? If you are working the problem, making hypotheses, testing your ideas, and coming up with a solution, you are using your frontal lobes. This is great exercise because the frontal lobes follow the “last hired, first fired” adage. They are they last areas of your brain to develop and the first to suffer the ravages of time and stress. So, keep exercising! Just like your voluntary muscles, regular brain workouts will help you keep more active neuronal circuits in your brain which helps you function better today, as well as create a protective barrier against aging.
Click to read the answer.
Let us know what you think of the puzzle and please welcome Wes!