A WORD THAT STARTS WITH F AND ENDS WI RIDDLES WITH ANSWERS TO SOLVE - PUZZLES & BRAIN TEASERS

ZERO.

The core of the 3 inch cube when cut, has all faces that are not painted. Hence at least one cube with no painted face always occurs. Did you answer this riddle correctly?
YES  NO  

Russian Roulette
Probability puzzles require you to weigh all the possibilities and pick the most likely outcome.


Puzzle ID: #17681
Fun: *** (2.59)
Difficulty: ** (2.07)
Category: Probability
Submitted By: JMCLEOD****
Corrected By: cnmne








You are in a game of Russian Roulette with a revolver that has 3 bullets placed in three consecutive chambers. The cylinder of the gun will be spun once at the beginning of the game. Then, the gun will be passed between two players until it fires. Would you prefer to go first or second?


Answer
Label the chambers 1 through 6. Chambers 1 through 3 have bullets and chambers 4 through 6 are empty. After you spin the cylinder there are six possible outcomes:

1. Chamber 1 is fired first: Player 1 loses
2. Chamber 2 is fired first: Player 1 loses
3. Chamber 3 is fired first: Player 1 loses
4. Chamber 4 is fired first: Player 2 loses (First shot, player 1, chamber 4 empty. Second shot player 2, chamber 5, empty. Third shot player 1, chamber 6 empty. Fourth shot player 2, chamber 1 not empty.)
5. Chamber 5 is fired first: Player 1 loses (First shot, player 1, chamber 5 empty. Second shot player 2, chamber 6, empty. Third shot player 1, chamber 1 not empty.)
6. Chamber 6 is fired first: Player 2 loses (First shot, player 1, chamber 6 empty. Second shot, player 2, chamber 1, not empty)

Therefore player 2 has an 4/6 or 2/3 chance of winning. Did you answer this riddle correctly?
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The probability of the driver encountering a yellow light and the light turning red before the car enters the intersection is about 5.5%.

At 45 mph the car is traveling at 66 feet/second and will take just over 3 seconds (3.03) to travel the 200 feet to the intersection. Any yellow light that is in the last 3.03 seconds of the light will cause the driver to run a red light.

The entire cycle of the light is 55 seconds. 3.03/55 = 5.5%. Did you answer this riddle correctly?
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Memory Did you answer this riddle correctly?
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Night falls and day breaks Did you answer this riddle correctly?
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Time Did you answer this riddle correctly?
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A map Did you answer this riddle correctly?
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Blood. Did you answer this riddle correctly?
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He was an executioner and she was sentenced to death. Did you answer this riddle correctly?
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The surgeon is the boys mother. Did you answer this riddle correctly?
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Meat. Did you answer this riddle correctly?
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There is no dirt in a hole. Did you answer this riddle correctly?
YES  NO  

Billie lives in the southern hemisphere. Did you answer this riddle correctly?
YES  NO  

An advent calendar Did you answer this riddle correctly?
YES  NO  

Christmas cards Did you answer this riddle correctly?
YES  NO