5839
points
Questions
2782
Answers
236

Adam tells that Brian always lies.
Brian says that Cody always lies.
Cody says that Adam as well as Brian always lies.Now we tell you that only one of them speaks the truth. Can you find out who is the one who speaks it?
View SolutionSubmit Solution 1,301.7K views
 2 answers
 1 votes

Husband has prepared for a candle light dinner on the honeymoon for his wife. While they were having the dinner, a strong breeze flew through the open window and four candles out of ten were extinguished. After that, the husband closed the window.
How many candles were left in the end?
View SolutionSubmit Solution 1,302.2K views
 1 answers
 0 votes

Both triangles are made of identical parts. In the bottom one is one empty square though. How is it possible?
View SolutionSubmit Solution 1,304.3K views
 2 answers
 1 votes

In karol Bagh,Delhi,India from puzzleFry’s office window i saw this bus and confused Which direction is the bus going,
Can you help me out, is it going left or right?
Hint: Out of the box and enter inside the box
View SolutionSubmit Solution 1,303.8K views
 1 answers
 2 votes

Using six contiguous straight lines, connect all of the sixteen circles shown below
Hint: Think of out the box
View SolutionSubmit Solution 1,311.7K views
 2 answers
 1 votes

Puzzlefry bought 2 teapots,
If teapot A holds 32 cups of tea, about how many cups of tea does teapot B hold?
View SolutionSubmit Solution 1,313.6K views
 1 answers
 1 votes

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 1,310.4K views
 3 answers
 0 votes

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 1,310.3K views
 3 answers
 1 votes