10 Boxes Riddle
There are ten boxes containing some balls. Each of the ball weighs exactly 10 grams. One of those boxes have defective balls (all the defective balls weigh 9 grams each).
An electronic weighing machine is provided to you and you are allowed only one chance of weighing on it.
How will you find out which box has defective balls ?
An electronic weighing machine is provided to you and you are allowed only one chance of weighing on it.
How will you find out which box has defective balls ?
Hint:
Let us simplify boxes by naming them from 1 to 10.
Now the trick here is to pick different number of balls from different boxes. So to simplify things, we will pick balls corresponding to box number.
Thus, pick 1 ball from Box 1, 2 balls from box 2, 3 balls from box 3 and so on. You will have 55 balls altogether. Now, put them all in the balance.
If all balls were weighing accurate 10 grams, the total weight of the 55 balls would have been 550 grams. But one of the box must have had the defective balls.
Suppose if the defective balls were in box number 2, then the total weight will be 2 grams less than 550. If the defective balls were in box 8, the total weight will be less than 8 grams from 550. In this way, you will be able to identify which box has the defective balls. Did you answer this riddle correctly?
YES NO
Now the trick here is to pick different number of balls from different boxes. So to simplify things, we will pick balls corresponding to box number.
Thus, pick 1 ball from Box 1, 2 balls from box 2, 3 balls from box 3 and so on. You will have 55 balls altogether. Now, put them all in the balance.
If all balls were weighing accurate 10 grams, the total weight of the 55 balls would have been 550 grams. But one of the box must have had the defective balls.
Suppose if the defective balls were in box number 2, then the total weight will be 2 grams less than 550. If the defective balls were in box 8, the total weight will be less than 8 grams from 550. In this way, you will be able to identify which box has the defective balls. Did you answer this riddle correctly?
YES NO
Old Clocks Riddle
Hint:
One Right Place Riddle
I come in different shapes and sizes. Parts of me are curved, other parts are straight. You can put me anywhere you like, but there is only one right place for me. What am I?
Hint:
The German Spy Riddle
However the manager was suspicious and decided to test him with a question before he trusted him. So he asked, what would you be sure to find in the middle of Toronto?
The spy thought fast and came up with an answer for the manager.
What did he say?
Hint:
How Many T's Riddle
Hint:
5 Houses Riddle
Here's more information:
An Englishman resides in a red house.
The Dane drinks tea.
Dogs are kept by the Swede.
The green house is left to the white house.
The occupant of the green house drinks coffee.
The birds are kept by the Pall Mall smoker.
The horse keeper and the Dunhill smoker live next to each other.
The German smokes Prince.
The Norwegian lives right next to the blue house.
The blend smoker's neighbor drinks water.
Hint:
Zebras And Ostriches In The Zoo
You count 80 heads and 200 legs.
Can you find the number of Zebras and the number of Ostriches in the Zoo?
Hint:
The number of Ostriches = 60 & The number of Zebras = 20 Did you answer this riddle correctly?
YES NO
YES NO
A Room Full Of Water
Imagine youre in a room that is filling with water. There are no windows or doors. How do you get out?
Hint:
The Jug Full Of Beer
A barman is having a 12 liters jug full of beer. He needs to divide or split that beer into two equal parts. All he has is two empty jugs of capacity 8 liters and 5 liters.
How will he do it using them?
How will he do it using them?
Hint:
First fill the 8 liters jug complete - 4, 8, 0
Fill the 5 liters jug with 8 liters jug - 4, 3, 5
Pour back the beer from 5 liters jug to 12 liters jug - 9, 3, 0
Pour the 3 liters from 8 liters jug to 5 liters jug - 9, 0, 3
Fill the 8 liters jug completely from 12 liters jug - 1, 8, 3
Fill the 5 liters jug from the 8 liters jug - 1, 6, 5
Pour the entire 5 liters jug back in 12 liters jug - 6, 6, 0
You have successfully split the beer into two equal parts. Did you answer this riddle correctly?
YES NO
Fill the 5 liters jug with 8 liters jug - 4, 3, 5
Pour back the beer from 5 liters jug to 12 liters jug - 9, 3, 0
Pour the 3 liters from 8 liters jug to 5 liters jug - 9, 0, 3
Fill the 8 liters jug completely from 12 liters jug - 1, 8, 3
Fill the 5 liters jug from the 8 liters jug - 1, 6, 5
Pour the entire 5 liters jug back in 12 liters jug - 6, 6, 0
You have successfully split the beer into two equal parts. Did you answer this riddle correctly?
YES NO
Escaping The Estranged Island
You wake up on an estranged island. You look everywhere and you find nothing. You search everywhere on the island and finally come across three torn pieces that can be joined to make one.
How will you escape the island using those torn pieces of paper?
PS: You have no other resources and you can't build anything of your own.
How will you escape the island using those torn pieces of paper?
PS: You have no other resources and you can't build anything of your own.
Hint:
Nothing is the name of a boat that has been lying docked up to one corner of the island. You found it first and then the torn pieces of paper reviled a map that can be used to navigate while driving that ship. Thus using them, you will be able to make an escape. Did you answer this riddle correctly?
YES NO
YES NO
Sweet 16 Riddle
There is a man who is very rich. He has a daughter who is turning 16 and he wants to throw a party for her. He invited all the men in the kingdom. At the party the man invites everyone out to the pool. The pool is infested with salt water crocodiles. The rich man says, "Whoever can swim across this pool and come out alive, can either have 1 million dollars or marry my daughter." Then there was a splash! They looked over to see a man swimming across the pool with his clothes getting ripped apart. He gets to the end and jumps out. "Congratulations! Do you want to marry my daughter or $1,000,000! What did the man say?
Hint:
Neither. He wanted the name of the person that pushed him in. Did you answer this riddle correctly?
YES NO
YES NO
Roads Without Cars Riddle
Hint:
Shipwrecked On A Deserted Island
Two men and women have shipwrecked on a deserted island. They are bored so they want to want to have some fun. As there is a plenty of time each one of them wants to try all possible (heterosexual) partners.
The problem is that each of them has a different STD and if anyone was to catch another one he/she would hardly survive. They have two condoms that the men had brought. How are they supposed to plan theyre sexual activities so that every woman would have sex with every man and they would prevent spreading STDs at the same time?
(Condoms are ideal, they last a lot but the used side cant get to contact with the particular part of a different body)
The problem is that each of them has a different STD and if anyone was to catch another one he/she would hardly survive. They have two condoms that the men had brought. How are they supposed to plan theyre sexual activities so that every woman would have sex with every man and they would prevent spreading STDs at the same time?
(Condoms are ideal, they last a lot but the used side cant get to contact with the particular part of a different body)
Hint:
To solve this problem they have to use two condoms at the same time.
man 1 uses two condoms and has sex with woman 1
man 1 takes off one condom and has sex with woman 2
man 2 takes condom that man 1 has taken off and has sex with woman 1
man 2 puts the second condom over the one he is already wearing and has sex with woman 2 Did you answer this riddle correctly?
YES NO
man 1 uses two condoms and has sex with woman 1
man 1 takes off one condom and has sex with woman 2
man 2 takes condom that man 1 has taken off and has sex with woman 1
man 2 puts the second condom over the one he is already wearing and has sex with woman 2 Did you answer this riddle correctly?
YES NO
Thirsty American Colonists Riddle
Hint:
Finding The Clue Riddle
Hint:
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