If an aeroplane crashes right on the border of the United States and Canada, in which country would you bury the survivors?
From: "What is The Name of This Book?" by Raymond Smullyan.
Showing posts with label Logics. Show all posts
Showing posts with label Logics. Show all posts
Friday, 20 November 2015
The Racetrack - Puzzle
A certain snail takes an hour and a half to crawl clockwise around a certain racetrack, yet when he crawls counter-clockwise around the same racetrack it takes him only ninety minutes. Why this discrepancy?
From: "What is The Name of This Book?" by Raymond Smullyan.
From: "What is The Name of This Book?" by Raymond Smullyan.
A Question of Slope - Puzzle
On a certain house, the two halves of the roof are unequally pitched; one half slopes downward at an angle of 60 degrees and the other half at an angle of 70 degrees. Suppose a rooster lays an egg right on the peak. On which side of the roof would the egg fall?
From: "What is The Name of This Book?" by Raymond Smullyan.
From: "What is The Name of This Book?" by Raymond Smullyan.
A Rate-Time Problem - Puzzle
A train leaves from Boston to New York, An hour later, a train leaves from New York to Boston. The two trains are going at exactly the same speed. Which train will be nearer to Boston when they meet?
From: "What is The Name of This Book?" by Raymond Smullyan.
From: "What is The Name of This Book?" by Raymond Smullyan.
Two Indians - Puzzle
Two American Indians were sitting on a log - a big Indian and a little Indian. The little Indian was the son of the big Indian, but the big Indian was not the father of the little Indian.
How do you explain that?
From: "What is The Name of This Book?" by Raymond Smullyan.
How do you explain that?
From: "What is The Name of This Book?" by Raymond Smullyan.
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