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(Click on the smiley face to get the answer and explanation!)
New riddles are toward the bottom!
1) Click Here to check out an old optical illusion2) If I have two coins that are worth a total of 15 cents and one of them is not a nickel, what are the two coins?
3) You are a traveller and come to an inn. You want to stay for 7 days and you have a chain of 7 links. The innkeeper says you can stay at his inn if you pay one link of your chain per day. You cannot pay in advance. What is the minimum number of links you have to cut in order to stay the 7 days? (no tricks, just logic)
I heard this one from Deena Malkina
4) There are three wise men on top of a mountain that are arguing about who is the wisest of them all. A stranger comes along and says he can solve their debate. The stranger has 5 hats, two black and three white, as shown below. He says "I will put a hat on each one of you when your eyes are closed and take the remaining hats away. When you open your eyes you will be able to see the other two mens hats but not your own. The first person to definitevly say what color hat he has wins." The wise men sat for a long time and finally one said "I know what color hat I have!" Remember they are wise men and do not take guesses so the wiseman knew for sure what hat he had. What color are the hats on each wiseman and how did the one who spoke arrive at his conclusion?
5) There is a portrait hanging on the wall. A person who is looking at the portrait says "I am an only child. The father of the person in the portrait is the son of my father." Who is on the portrait?
6) If the father of the son of the professor and the son of the father of the professor fought and the professor did not fight, who fought?
7) You are a hunter. You see a bear 100m due north. You walk 50m due east turn to the north and shoot. The bear falls and dies. What color is the bear?
8) A painter must paint 100 houses numbered 1-100 consecutively. Without using pen or paper calculate how many 9 digits must the painter order?
9) A jury in a court of law found one of the defendants guilty and the other one not guilty. Upon sentencing however, the judge declared that although one of the defendants is totally guilty, he has to let both of them go. How can this be?
10) You have a 5L jug and a 3L jug and an unlimited supply of water. How can you make exactly 4L?
11) This is about weighing balls. You have six identical looking balls. One of the balls is defective and weighs less. How many times do you have to weigh different combinations of balls in order to find out which ball is defective?
12) Same ball weighing, except this time the defective ball could be lighter or heavier. If you dont know which, how many times do you have to weigh the balls to find the defective balls?
Liars and Knights! The following are a list of riddles on this theme.
1) You come up to a fork in the road. One road leads to the city of liars(city where the inhabitants only lie) and the other to the city of knights(city where the inhabitants only tell the truth). There stands a man that is from one of the cities. What one question must you ask the man in order to get to the city of knights?
2) You again come up to a fork in the road, only this time one leads to Paris and the other one to nowhere. There are two strangers at the fork, one is a liar and one is a knight, and you don't know who is who. What one question must you ask in order to find the way to Paris?
3) You come up to two strangers: A and B who are either a liar and a knight, both liars or both knights. A says "Either I am a liar or he is a knight." Who is who in this situation?
4) You again come up to two strangers: A and B who are either a liar and a knight, both liars or both knights. A says "At least one of us is a liar." Who is who in this situation?
5) A stranger comes up to three people: A, B, and C who are liars, knights, or any combination of the two. The stranger asks A "Are you a knight or a liar?" He mumbled and the stranger did not understand what the answer was. The stranger then asked B "What did A say?" B says "A says he is a liar." Then C says "Don't believe B he is a liar." Who is who in the situation?
6) A man comes to an island and falls in love with a girl. He wants to marry her if she is not a liar. What question does he ask her brother in order find out?
7) A stranger comes up to three people: A, B, and C who are liars, knights, or any combination of the two.
A says: "We are all liars."
B says: "One of us is a knight."
Who is who?
8) A stranger comes up to three people: A, B, and C who are liars, knights, or any combination of the two.
A says: "We are all liars."
B says: "Exactly one of us is a liar."
Can you determine who B is? Can you determine who C is?
9) A stranger comes up to two people: A and B who are liars, knights, or any combination of the two.
A says: "I am a liar and B is not a liar."
Who are A and B?
10) A stranger comes up to three people: A, B, and C who are liars, knights, or any combination of the two. If any two are said to be the same, that mean they are either both knights or both liars.
A says: "B is a liar."
B says: "A and C are the same."
Who is C?
11) A stranger comes up to three people: A, B, and C who are liars, knights, or any combination of the two. If any two are said to be the same, that mean they are either both knights or both liars.
A says: "B and C are the same."
The stranger asks C: "Are A and B the same?"
What does C answer?
12) You come up to two people: A and B who are liars, knights, or any combination of the two. You ask one of them: "Is your friend a knight?" You recieve a yes or no answer and then ask his companion the same question. Must both of the answers be the same?
13) You come up to two people: A and B who are liars, knights, or any combination of the two. You ask one of them: "Is any one of you a knight?" You recieve a yes or no answer that satisfies your question. What is the answer?
Liars, Knights, and Normal People! The following are a list of riddles on this theme.
14) You come up to three people: A, B, and C who are exactly one liar, one knight, and one normal person.
A says: "I am a normal person."
B says: "This is true."
C says: "I am not a normal person."
Who is who?
15) You come up to two people: A and B who are either liars, knights, normal people, or a combination. In this area there is a ranking system: a liar is lower than a normal person and a normal person is lower than a knight.
A says: "By rank I am lower than B."
B says: "This is not true."
Can the ranks of A and B be determined? Can it be determined if what each of them said is the truth?
16) You come up to three people: A, B, and C who are either liars, knights, normal people, or a combination. In this area there is a ranking system: a liar is lower than a normal person and a normal person is lower than a knight.
A says: "By rank, B is higher than C."
B says: "By rank, C is higher than A."
Then you ask C: "Who is higher in rank A or B?" What does C answer?
Island of Bahava! The following are a list of riddles on this theme.
17) You meet up with two people: Mister A and Misses A who are a couple following the above rule.
Mister A says: "My wife is not a normal person."
Misses A says: "My husband is not a normal person."
Who are Mister and Misses A
18) You meet up with two people: Mister A and Misses A who are a couple following the above rule. This time
Mister A says: "My wife is a normal person."
Misses A says: "My husband is a normal person."
Is the answer to this riddle the same as the previous?
19) You meet up with three people: Mister A and Misses A, and Misses B who follow the above rule.
Mister A says: "Mister B is a knight."
Misses A says: "My husband is correct, Mister B is a knight."
Misses B says: "My husband is definetly a knight."
Who are Mister A and Misses A, and Mister B and Misses B? Which of the tree statements true?
2.
1) Deena's riddle! Find the pattern:2, 4, 6, 8, 10, 12, 13, 14, 15, 17, 26, 27, 28, 30, 33, 34, 37, 39, 43, 44
2) There are 4 people at a bridge: A, B, C, and D. It takes
A 1 minute, B 2 minutes, C 5 minutes, and D 10 minutes to cross the bridge. They can cross alone or in pairs, but each single or pair must carry a flashlight with them. There is only one flashlight and it cannot be thrown. What is the shortest time that it will take A, B, C, and D to traverse the bridge?
3) Here is a weird riddle. You must move one stick to create a true statement. You can take a stick from the 4 to make it a 1 or make the + a - sign, or other sneaky alternations. The 8 remains the same. There are two solutions. The 1 can have one stick or two.
4) The challenge is the same as above! The original statement is 23 / 7 = 2 in Roman numeruls. Hint: answer valid to two decimal places!
Alice in Wonderland! Where Alice does not remember anything.
1) Alice comes upon a unicorn and a lion. The lion says "Yesterday was a day when I lie." The unicorn says "Yesterday was also a day when I lie." What is the day when this situation happend?
2) Alice comes upon a lion. The lion says "I lied yesterday. After tommorow, I will lie for two days straight." What is the day when this situation happend?
3) When can a lion say the following two things: "I lied yesterday. I am going to lie tommorow."?
4) When can a lion say the following thing: "I lied yesterday and I am going to lie tommorow." ? (Answer not the same as the previous problem!)
Blind Alice!
5) Alice comes to the pair. The first animal says "I am a lion." The second animal says "I am a unicorn." Who is really a lion and who is really a unicorn?
6) Alice comes to the pair on a different day of the same week. The first animal says "I am a lion." The second animal says "If thats true, I am a unicorn." Who is really a lion and who is really a unicorn?
3.
1) What can a rich man not buy, God not destroy, and hungry man not eat?
2) There are three jewelry boxes: one made of gold, one of silver, and one of bronze. You have to pick the one that has the dimond ring inside of it.
The gold box has this written on it: "The ring is here"
The silver box has this written on it: "The ring is not here"
The bronze box has this written on it: "The ring is not in the gold box"
One engraving is true. Where is the ring?
3) Again there are three jewelry boxes: one made of gold, one of silver, and one of bronze. You have to pick the one that has the dimond ring inside of it.
The gold box has this written on it: "The ring is not in the silver box"
The silver box has this written on it: "The ring is not here"
The bronze box has this written on it: "The ring is here"
At least one engraving is true and at least one is false. Where is the ring?
4) Again there are three jewelry boxes: one made of gold, one of silver, and one of bronze. You have to pick the one that has the dimond ring inside of it. Each box has two engravings on it.
The gold box has this written on it:
1)"The ring is not here"
2)"The ring was made by an artisan from Venice"
The silver box has this written on it:
1)"The ring is not in the gold box"
2)"The ring was made by an artisan from Florence"
The bronze box has this written on it:
1)"The ring is not here"
2)"The ring is in silver"
At most one engraving per box is false. Where is the ring?
5) Again there are three jewelry boxes: one made of gold, one of silver, and one of bronze. You have to pick the one that has the dimond ring inside of it. Each box has two engravings on it.
The gold box has this written on it:
1)"The ring is not here"
2)"The ring is in the silver box"
The silver box has this written on it:
1)"The ring is not in the gold box"
2)"The ring is in the bronze box"
The bronze box has this written on it:
1)"The ring is not here"
2)"The ring is in the gold box"
One box has 2 true engravings, one has 2 false, and the third has one false and one true. Where is the ring?
4. New Riddles(July 17, 2002)
Chelini and Belini!1) Again there are three jewelry boxes: one made of gold, one of silver, and one of bronze. You have to pick the one that does not have the dimond ring inside of it. Each box has one engravings on it.
The gold box has this written on it: "The ring is here"
The silver box has this written on it: "This box is empty"
The bronze box has this written on it: "Belini made no more than one box"
Which box does not have the ring?
2) There are now two jewelry boxes: one made of gold and one of silver. You have to pick the one that has the dimond ring inside of it. Each box has one engravings on it.
The gold box has this written on it: "The ring is not here"
The silver box has this written on it: "This box is empty"
The bronze box has this written on it: "Exactly one of the boxes is made by Belini"
Which box does not have the ring?
3) There are now three jewelry boxes: one made of gold, one of silver, and one made of bronze. 1)You have to pick the one that has the dimond ring inside of it; and 2)Find out which person made which box. Each box has one engravings on it. There is only one solution.
The gold box has this written on it: "The ring is here"
The silver box has this written on it: "The ring is here"
The bronze box has this written on it: "At least two boxes are made by Chelini"
Which box does not have the ring? And who made the boxes?
The End
Please feel free to submit a riddle/puzzle thats not here. I would love to hear any and all!Copyright © 2001 Yuri Zuev. All Rights Reserved.