We are delighted to introduce you to Puzzle Master Wes Carroll who has graciously created a few new puzzles to bend all those sharp brains out there! 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.Party For Polyglots.Question: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?