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Problem Riddles To Solve
Solving Problem Riddles
Here we've provide a compiled a list of the best problem puzzles and riddles to solve we could find.Our team works hard to help you piece fun ideas together to develop riddles based on different topics. Whether it's a class activity for school, event, scavenger hunt, puzzle assignment, your personal project or just fun in general our database serve as a tool to help you get started.
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The results compiled are acquired by taking your search "problem" and breaking it down to search through our database for relevant content.
Browse the list below:
3 Gallon Jug And 5 Gallon Jug
The problem is to fill one of the jugs with exactly 4 gallons of water. How do you do it?
You've got to defuse a bomb by placing exactly 4 gallons (15 L) of water on a sensor. The problem is, you only have a 5 gallon (18.9 L) jug and a 3 gallons (11 L) jug on hand! This classic riddle, made famous in Die Hard 3.
Hint:
Fill the 5-jug up completely. There will be, of course, 5 gallons in the 5-jug. You must fill all the gallons up to the top, otherwise you don't actually know how much you have.
Use the water from the 5-jug to fill up the 3-jug. You're left with 3 gallons in the 3-jug and 2 gallons in the 5-jug.
Pour out the 3-gallon jug. You're left with nothing in the 3-jug and 2 gallons in the 5-jug.
Transfer the water from the 5-jug to the three jug. You're left with 2 gallons in the 3-jug. And nothing in the 5-jug.
Fill up the 5-jug completely. You now have 2 gallons in the 3-jug and 5 in the 5-jug. This means that there is 1 gallon (3.8 L) of space left in the 3-jug.
Use the water from the 5-jug to fill up the 3-jug. Fill up the last gallon of space in the 3-jug with the water from the 5-jug. This leaves you with 3 gallons in the 3-jug, and 4 gallons in the 5-jug.
Fill the 3-jug completely with water. You now have 3 gallons (11.4 L) of water.
Transfer this water into the 5-jug. You now have nothing in the 3-jug, and 3 gallons (11.4 L) in the 5-jug.
Re-fill the 3-jug with water. You now have 3 gallons (11.4 L) in the 3-jug and 3 gallons in the 5-jug.
Fill the 5-jug with water from your 3-jug. You now have 1 gallon (3.8 L) in the 3-jug and 5 gallons (18.9 L) in the 5-jug. This is because, in the last step, you only had 2 gallons (7.6 L) of space left over, so you could only pour 2 gallons.
Pour out the 5-jug and refill it with your 1 gallon. You now have nothing in the 3-jug and 1 gallon in the 5-jug
Fill up the 3-jug. You now have 3 gallons (11.4 L) in the 3-jug and 1 in the 5-jug.
Transfer the 3 gallons (11.4 L) of water into the 5-jug to end up with 4 gallons (15.1 L). Simply pour over your three gallons into the 5-jug, which only had 1 gallon (3.8 L) in it previously. 1+3=4, and a successfully defused bomb. Did you answer this riddle correctly?
YES NO
Use the water from the 5-jug to fill up the 3-jug. You're left with 3 gallons in the 3-jug and 2 gallons in the 5-jug.
Pour out the 3-gallon jug. You're left with nothing in the 3-jug and 2 gallons in the 5-jug.
Transfer the water from the 5-jug to the three jug. You're left with 2 gallons in the 3-jug. And nothing in the 5-jug.
Fill up the 5-jug completely. You now have 2 gallons in the 3-jug and 5 in the 5-jug. This means that there is 1 gallon (3.8 L) of space left in the 3-jug.
Use the water from the 5-jug to fill up the 3-jug. Fill up the last gallon of space in the 3-jug with the water from the 5-jug. This leaves you with 3 gallons in the 3-jug, and 4 gallons in the 5-jug.
Fill the 3-jug completely with water. You now have 3 gallons (11.4 L) of water.
Transfer this water into the 5-jug. You now have nothing in the 3-jug, and 3 gallons (11.4 L) in the 5-jug.
Re-fill the 3-jug with water. You now have 3 gallons (11.4 L) in the 3-jug and 3 gallons in the 5-jug.
Fill the 5-jug with water from your 3-jug. You now have 1 gallon (3.8 L) in the 3-jug and 5 gallons (18.9 L) in the 5-jug. This is because, in the last step, you only had 2 gallons (7.6 L) of space left over, so you could only pour 2 gallons.
Pour out the 5-jug and refill it with your 1 gallon. You now have nothing in the 3-jug and 1 gallon in the 5-jug
Fill up the 3-jug. You now have 3 gallons (11.4 L) in the 3-jug and 1 in the 5-jug.
Transfer the 3 gallons (11.4 L) of water into the 5-jug to end up with 4 gallons (15.1 L). Simply pour over your three gallons into the 5-jug, which only had 1 gallon (3.8 L) in it previously. 1+3=4, and a successfully defused bomb. Did you answer this riddle correctly?
YES NO
17 Cows Riddle
One day, their neighbor came by to see how they were doing after their father's death. The three sons told him their problem. After thinking for a while, the neighbor said: "I'll be right back!" He went away, and when he came back, the three sons could divide the cows according to their father's will, and in such a way that each of them got a whole number of cows.
What was the neighbor's solution?
Hint:
The neighbour borrowed an extra cow, to make the total number of cows 18. Then the oldest son got 1/2 of 18 is 9 cows, the middle son got 1/3 of 18 is 6 cows, and the youngest son got 1/9 of 18 is 2 cows. Since 9+6+2 = 17, the cows could be divided among the three brothers in such a way that the borrowed cow was left over, and could be returned to its owner. Did you answer this riddle correctly?
YES NO
YES NO
The Same Problem Riddle
Hint:
Pearl Problems Riddle
"I'm a very rich man, so I've decided to give you some of my fortune. Do you see this bag? I have 5001 pearls inside it. 2501 of them are white, and 2500 of them are black. No, I am not racist. I'll let you take out any number of pearls from the bag without looking. If you take out the same number of black and white pearls, I will reward you with a number of gold bars equivalent to the number of pearls you took."
How many pearls should you take out to give yourself a good number of gold bars while still retaining a good chance of actually getting them?
How many pearls should you take out to give yourself a good number of gold bars while still retaining a good chance of actually getting them?
Hint: If you took out 2 pearls, you would have about a 50% chance of getting 2 gold bars. However, you can take even more pearls and still retain the 50% chance.
Take out 5000 pearls. If the remaining pearl is white, then you've won 5000 gold bars! Did you answer this riddle correctly?
YES NO
YES NO
Problem At The Pool Riddle
Hint:
The Graveyard Of Ol' Man Jenkins
There was a girl who was extremely brave and always bragged about how brave she was. Many of her classmates got sick and tired of her boasting, so they decided to play a trick on her. One day, a group of boys and girls walked up to her and said, " If you're so brave, we all dare you to go to the old graveyard at the back of Ol' Man Jenkins mansion all alone at midnight. Stand in front of a tombstone, rumor has it that if you do, a bony hand will reach out and grab you, dragging you underground! You said you were brave so that shouldn't be so hard! To prove that you actually went, stick a knife in front of a tombstone so in the morning, we'll know you were there." Of course, the girl couldn't refuse and agreed to the dare. At midnight, she did just as her classmates asked and went to the graveyard with a pocketknife. The night was cold and windy, blowing her dress, chills went up her spine. She slowly walked up to a tombstone and quickly stuck the pocket knife into the ground. She was beginning to feel not as brave as she thought she was. Turning around as fast as she could, she just wanted to get out of there right away! But, there was a problem. Something was stopping her from moving. Was it a bony hand trying to drag her down? A shrill scream was heard. The next morning, the boys and girls went to the graveyard to see if the girl had been there. To their horror, she was there, dead.
1) What prevented the girl from escaping the graveyard?
2) How did the girl die?
1) What prevented the girl from escaping the graveyard?
2) How did the girl die?
Hint:
1) The girl was wearing a dress at the graveyard. It was dark, so she hadn't noticed where she stuck the knife in the ground. She accidently stuck it in her dress (and the girl DID NOT get hurt by the knife in any way). That is what prevented her from running away.
2) Since the knife had her stuck, she was frighted that the rumor of the bony hand was true and had grabbed her, trying to pull her into the ground. She was truly terrified and died of fright. Did you answer this riddle correctly?
YES NO
2) Since the knife had her stuck, she was frighted that the rumor of the bony hand was true and had grabbed her, trying to pull her into the ground. She was truly terrified and died of fright. Did you answer this riddle correctly?
YES NO
Locking The Mail
Tom wants to send Sally an expensive ring through the mail because they live thousands of miles apart. The only problem is that everything sent through the mail is stolen unless there is a lock put on it. Both Tom and Sally have plenty of locks and keys but they don't have any of the same locks or keys.
How can Tom send Sally the ring without it getting stolen?
How can Tom send Sally the ring without it getting stolen?
Hint:
Tom puts one of his locks on the box with the ring in it. When Sally gets it she puts one of her own locks on the box and sends it back to Tom. Finally Tom takes his lock off of the box and sends it back to Sally who can then unlock her own lock and retrieve the ring. Did you answer this riddle correctly?
YES NO
YES NO
New Year's Jog 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
The Perfect Pill Riddle
The world is facing a serious viral infection. The government of various countries have issued every citizen two bottles. You as well have been given the same. Now one pill from each bottle is to be taken every day for a month to become immune to the virus. The problem is that if you take just one, or if you take two from the same bottle, you will die a painful death.
While using it, you hurriedly open the bottles and pour the tablets in your hand. Three tablets come down in your hand and you realize they look exactly the same and have same characteristics. You cant throw away the pill as they are limited and you cant put them back or you may put it wrong and may die someday.
How will you ensure that you are taking the right pill?
While using it, you hurriedly open the bottles and pour the tablets in your hand. Three tablets come down in your hand and you realize they look exactly the same and have same characteristics. You cant throw away the pill as they are limited and you cant put them back or you may put it wrong and may die someday.
How will you ensure that you are taking the right pill?
Hint:
You must put labels on the tablets as A and B before using. In that case, if you pour tablets together, you will get 3A, 2A 1B, 1A 2B or 3B. If they are from the same bottles you can take one from another bottle and save the remaining two for another day. If you get two from same and one from other, you can draw one from another bottle and you will have two pairs of which you can eat one and save the other. Did you answer this riddle correctly?
YES NO
YES NO
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