Interview Puzzle
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The number of hours left today is half of the number of hours already passed. What time is it?
A. 8:00 a.m.
B. 12:00
C. 14:00
D. 16:00View SolutionSubmit Solution- 1,622.8K views
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Here is snippet of section A of the curious multiple-choice entrance exam into the exclusive Puzzlefry puzzle club.
1. The first question with B as the correct answer is:
A. 1
B. 4
C. 3
D. 22. The answer to Question 4 is:
A. D
B. A
C. B
D. C3. The answer to Question 1 is:
A. D
B. C
C. B
D. A4. The number of questions which have D as the correct answer is:
A. 3
B. 2
C. 1
D. 05. The number of questions which have B as the correct answer is:
A. 0
B. 2
C. 3
D. 1View SolutionSubmit Solution- 1,622.4K views
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A king wants an advisor and comes to ask the 3 wisest sages.
He blindfolds them and put the hats on their head. Afterwards, the king takes off their blindfolds. He tells them that their hat is either blue or white. He tells them that whoever can deduce the color of their hat will be his next advisor. Also he tells them that at least one of the sages will be wearing a blue hat. The sages can all see each other’s hats except of course, their own. Sage A sees that the other 2 are wearing blue hats.
For hours no one spoke, then Sage A stands up and tells the king the colour of his hat. What color is it and how does he know?View SolutionSubmit Solution- 1,626.6K views
- 4 answers
- 1 votes
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You are trying to cook an egg for exactly fifteen minutes, but instead of a timer, you are given two ropes which burn for exactly 1 hour each. The ropes, however, are of uneven densities – i e , half the rope length-wise might take only two minutes to burn. How can you cook the egg for exactly fifteen minutes?
View SolutionSubmit Solution- 1,624.3K views
- 2 answers
- 1 votes
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On Bagshot Island, there is an airport. The airport is the homebase of an unlimited number of identical airplanes. Each airplane has a fuel capacity to allow it to fly exactly 1/2 way around the world, along a great circle. The planes have the ability to refuel in flight without loss of speed or spillage of fuel. Though the fuel is unlimited, the island is the only source of fuel.
What is the fewest number of aircraft necessary to get one plane all the way around the world assuming that all of the aircraft must return safely to the airport? How did you get to your answer?Notes:
(a) Each airplane must depart and return to the same airport, and that is the only airport they can land and refuel on ground.
(b) Each airplane must have enough fuel to return to airport.
(c) The time and fuel consumption of refueling can be ignored. (so we can also assume that one airplane can refuel more than one airplanes in air at the same time.)
(d) The amount of fuel airplanes carrying can be zero as long as the other airplane is refueling these airplanes. What is the fewest number of airplanes and number of tanks of fuel needed to accomplish this work? (we only need airplane to go around the world)View SolutionSubmit Solution- 1,629.1K views
- 3 answers
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You are the ruler of a medieval empire and you are about to have a celebration tomorrow. The celebration is the most important party you have ever hosted. You’ve got 1000 bottles of wine you were planning to open for the celebration, but you find out that one of them is poisoned.
The poison exhibits no symptoms until death. Death occurs within ten to twenty hours after consuming even the minutest amount of poison.
You have over a thousand slaves at your disposal and just under 24 hours to determine which single bottle is poisoned.
You have a handful of prisoners about to be executed, and it would mar your celebration to have anyone else killed.
What is the smallest number of prisoners you must have to drink from the bottles to be absolutely sure to find the poisoned bottle within 24 hours?
View SolutionSubmit Solution- 1,629.3K views
- 3 answers
- 1 votes
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The king’s only children, Abel, Benjamin and Paula, went into the forest with their friend, the elderly Sir Kay. They wanted to try their skill with their bows and arrows. Each of them started with same number of arrows.
When all the arrows had been shot, it was discovered that:1. Sir Kay brought down more game than Princess Paula.
2. Prince Benjamin captured more than Sir Kay.
3. Princess Paula’s arrows went truer than Prince Abel’s.Who was the best marksman that day?
View SolutionSubmit Solution- 1,624.6K views
- 1 answers
- 1 votes
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To enlist the help of the other kingdoms, the king talked to the queen about inviting neighboring royalty to dinner. This put the queen into a royal snit. Theirs was not a very wealthy kingdom and the royal dinnerware was in a disgraceful condition. Apart from ordinary dishes for everyday use, all that the royal pantry contained were a few dinner plates of three different
dinner patterns:
1. five silver ones with birds
2. six crystal with seashells
3. seven gold with the royal crest
They were all stored in disarray on a very dark top shelf of the royal pantry. Only those would be suitable for entertaining other royalty.
If the queen didn’t want to climb up to the top shelf twice, how many dinner plates would she have to take down to be sure she had matching dinner plates for herself, her royal spouse, and for the neighbouring king and queen?View SolutionSubmit Solution- 1,626.1K views
- 1 answers
- 1 votes
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Four Martians from different groups, the Uti,
Grundi, Yomi and Rafi, gathered for an intraplanetary
conference to discuss the problem of the visiting Earthlings.
As was appropriate for diplomatic envoys, all
were beautifully feathered in different colors, one red,
one green, one blue and the fourth brown. Their names
were Aken, Bal, Mun and Wora.
1. Before the meeting, the Uti had a pleasant breakfast
with Mun.
2. After debating with the Martians in the blue and
the brown feathers, Bal and the Yomi were so angry
that they tore a wingful of feathers out of them
before they were stopped.
3. Wora and the Rafi, however, agreed with the diplomat
with brown feathers, though they disagreed
with the red-feathered Grundi.
Who is the blue-feathered diplomat and to what
group does he or she belong?View SolutionSubmit Solution- 1,623.5K views
- 1 answers
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Hostile members of the Uti, Grundi and Yomi groups
were travelling to a conference. There were two members
from each group, one finned and one feathered.
The finned Martian was much stronger, and had to
protect her feathered friend. Never could a feathered
Martian be left alone with a finned Martian of another
group. The only time a feathered Martian was safe with
the finned Martian of another group was when the
feathered Martian of that enemy group was also
present.
The trip was quiet until they came to a deep ravine.
The only way to cross it was by swinging across on a
rope. But the rope was only strong enough to hold two
of them. And it wasn’t heavy enough for them to swing
it back over the ravine without someone to weigh it
down. How did they all cross the ravine?View SolutionSubmit Solution- 1,624.6K views
- 1 answers
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