Two Traps
Question: Without any wrongdoings, you are brought into an interrogation room by the governor and told that “You can make one last statement to save yourself before we seize one item of yours. We will...
View ArticleTogglers
Question: There are 5 people in front of you. One of them is the truthteller and always says the truth. The other four are togglers: they maytell the truth or lie the first time you ask him/her a...
View ArticleShelving Books
Question: Suppose two million books fell of shelves in a library after an earthquake. How many students would be needed to be hired to shelve all of the books in one working day? Is it closest to:A)...
View ArticleProduct of Positive Odd Integers
Question: Using only the numbers 2, 5000, 10000, and the factorial operation, how can you express the product of all positive odd integers less than 10000?Tags: NumbersLevel II
View ArticleDefected Egg
Question: You have 12 eggs, with one defective that may be heavier orlighter than the rest. You are given a double-beam balance that only shows you which side is heavier. What is the least number of...
View ArticleExact Shopping
Question: You must buy 100 books for exactly $100, and purchase them from each of the three bookstores. At Bookstore 1, you can buy 20 books for $1. At Bookstore 2, you can buy one book for $1. At...
View ArticleClock Angle
Question: A) It’s 2:10. What’s the degree (if any) in the angle between the hour and minute hand?B) What is the first time after 3PM when the hour and minute hands of a clock are exactly on top of each...
View ArticleDraw Until Gone
Question: There are 10 fruits in a basket: 4 apples, 6 oranges. You randomly take a fruit out of the basket on each turn (without replacement) until either all of the apples or all of the oranges are...
View ArticleOne-Day Excel Skills and Programming Workshop
Want to sharpen your Excel skills through case practices? This Fall 2012 semester, George Zhao (Operations Research, 2014) held a series of Excel workshops. He will hold a one-day workshop on Saturday,...
View ArticleSeniors, are you stepping towards success in your job search?
Where are you in your post-graduation job search? Read below for some tips and resources for success no matter at what stage you are in the process. Also RSVP for our workshop especially for seniors...
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