A. When a car is driven forwards the wheels rotate counter-clockwise. B. If a clock is put forward 1 1/4 hours the minute hand moves through 450° C. When a clock reads 4.10 the acute angle between the hands is exactly 60°
A. False – The near-side wheels rotate counter-clockwise, but the far-side wheels rotate clockwise. B. True C. False – The acute angle is a little more than 60° because by the time the minute hand reaches 10, the hour hand will have moved slightly past the 4.
You are given eight coins and told that one of them is counterfeit. The counterfeit one is slightly heavier than the other seven. Otherwise, the coins look identical. Using a simple balance scale, how can you determine which coin is counterfeit using the scale only twice?
First weigh three coins against three others. If the weights are equal, weigh the remaining two against each other. The heavier one is the counterfeit. If one of the groups of three is heavier, weigh two of those coins against each other. If one is heavier, it’s the counterfeit. If they’re equal weight, the third coin is the counterfeit.
A man can make perfect counterfeit bills. They look exactly like real ones, they’re made of exactly the same materials, made the same way, everything. So perfect, one could pretty much call them real bills. One day he successfully makes a perfect copy of another bill. However, he gets caught when he tries to use the copy. How is this possible?
As a counterfeiter, he had lots of counterfeit bills around and he accidentally used one of them as his original. So he made a perfect copy of a counterfeit bill.
In 2012 a class was divided into 2 groups. Their assignment was to find the names of at least 3 children who were born on the same day from 5 different months of 2011. These were the results:
Group 1 August 20: Oliver, William, and Adam. January 3: John, Alice, and Ken. September 7: Bruce, Shane, and Peter. June 11: April, Patrick, and Bobby. July 19: Trent, Julie, and Charles.
Group 2 March 1: Karl, Willie, and Patty. February 29: Blake, Kobe, and Wayne. December 24: Kyle, Chad, and Zoe. May 12: Matthew, Manny, and Adrian. November 20: Greg, Fiona, and Elizabeth.
The members of group 2 got an F on the assignment. Why?