A Fun Zone's Brain Teaser #52

A brain teaser is a form of puzzle that requires thought to solve. It often requires thinking in unconventional ways with given constraints in mind; sometimes it also involves lateral thinking. Logic puzzles and riddles are specific types of brain teasers.
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The Brain Teaser: Scroll Down for your Solution

1. Three Points on a Hemisphere
Three points are selected at random on a sphere's surface. What is the probability that they all lie in the same hemisphere? Assume that the great circle, bordering a hemisphere, is part of the hemisphere.

2. I am a window, I am a lamp, I am clouded, I am shining, and I am colored; set in white, I fill with water and overflow. I say much, but I have no words. What am I?


The Solution

Definition of solution - a means of solving a problem or dealing with a difficult situation. Our Free Brain Teaser Newsletter

1. The probability is 1 (complete certainty). Any three points on a sphere must be on a hemisphere..

2. An eye.