A tree doubled in height each year until...

Riddle: A kind man comes across a dirty box, a voice says to him “Coconuts, $5 a dozen”With his lightning quick arithmetic he calculates that if he sold those same coconuts to the coconut air assault team for the accepted rate of $3 per dozen that in no time at all he would be a millionaire. What's with this guy, assuming his math is accurate?

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Answer: He was a billionaire

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Rating: 100%

Riddle: A royal celebration was planned by Queen Elizabeth. The royal family devised a password to keep unwelcome visitors out. Wayne (an unwelcome guest) intends to attend the gathering. He is standing close to the door. When the first visitor arrived, the security guard stated ‘twelve,’ and the visitor answered with six. When the second visitor arrived, the security guard said six,’ and the guest answered with ‘three.’ Wayne decided that was enough and headed to the entrance point. When the security guard answered ‘eight,’ Wayne smiled and said, ‘four.’ He was kicked out of the gathering right away. Why?

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Answer: ‘Five’ is the correct answer. The total number of letters, not half of the number, is the password.

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Rating: 100%

Riddle: In a contest, four fruits (an apple, a banana, an orange, and a pear) have been placed in four closed boxes (one fruit per box). People may guess which fruit is in which box. 123 people participate in the contest. When the boxes are opened, it turns out that 43 people have guessed none of the fruits correctly, 39 people have guessed one fruit correctly, and 31 people have guessed two fruits correctly. The Question: How many people have guessed three fruits correctly, and how many people have guessed four fruits correctly?

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Answer: It is not possible to guess only three fruits correctly: the fourth fruit is then correct too! So nobody has guessed three fruits correctly and 123-43-39-31 = 10 people have guessed four fruits correctly

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Rating: 100%

Riddle: Walking home one day, you take a short cut along the train tracks. The tracks cross a narrow bridge over a deep gorge. At the point you are 3/8 of the way across the bridge, you hear the train whistle somewhere behind you. You charge across the bridge, and jump off the track as the train is about to run you down. As it happens, if you had gone the other way, you would have reached safety just before being run over as well. If you can run ten miles per hour, how fast is the train moving?

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Answer: The train is moving at 40 miles per hour. Imagine that a friend is walking with you. When the train whistle blows, you head away from the train, he heads toward it. When he reaches safety, you will be 6/8 (or 3/4)of the way across the bridge, and the train will have just reached the bridge. For the train to cross 4/4 of the bridge in the time you cross the remaining 1/4, the train must be moving four times your speed

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Rating: 100%

Riddle: A clock chimes 5 times in 4 seconds. How many times will it chime in 10 seconds?

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Answer: 11 times. It chimes at zero and then once every second for 10 seconds

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Rating: 100%

Riddle: What is the value of 1/2 of 2/3 of 3/4 of 4/5 of 5/6 of 6/7 of 7/8 of 8/9 of 9/10 of 1,000?

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Answer: One hundred - work backwards and you will understand

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Rating: 100%