Showing posts with label Logics. Show all posts
Showing posts with label Logics. Show all posts

Friday, 20 November 2015

A Question of International Law - Puzzle

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.

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.

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.

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.

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.