Logic Riddles with Answers
Play Logic Riddles with answers on Thinkmad. Reveal answers, solutions and challenge your brain.
Logic Riddles list
- 10 fish are in a tank. 2 Drown, 4 Swim away, and 3 Die. How many are left?
- A bike rider is traveling north at 25 mph, a car passes the bike rider going north at 40 mph. At the same time the bike rider passes a jogger running north at 5 mph. Which will move away from the bike rider at a faster pace, the car or the jogger?
- A boy throws a baseball. It travels 40 feet and then goes right back to the boy. How is that possible?
- A claustrophobic person gets on a train. The train enters a tunnel just as it is leaving the station. Where is the best place for him to sit?
- A girl is sitting in a house at night that has no lights on at all. There is no lamp, no candle, nothing. Yet she is reading. How?
- A grandmother, two mothers and two daughters went shopping together and everyone bought one purse each. How many purses did they bring home all together?
- A man goes upstairs to grab his time machine. He walks downstairs then goes back in time 200 years. Why did he go downstairs?
- A man is able to contact his long lost brother who has never met. They agree to meet. When the brother arrives he is able to instantly pick him out from the crowd. How is that possible?
- A man is twenty years old but has only had five birthdays. How is that possible?
- A man wants to buy a used car. He finds a beautiful Buick for $9500, but he buys it without paying a dime. How did he manage this?
- A man was sitting on his couch and searching for the English Channel. How did he find it?
- A murderer is condemned to death. He has to choose between three rooms. The first is full of raging fires, the second is full of assassins with loaded guns, and the third is full of lions that haven't eaten in 3 years. Which room is safest for him?
- A town has only two barbers. One of the barbers has a nice, tidy haircut, and the other has a shaggy, messy haircut. Which barber should you go to?
- A train just leaves a station and enters a tunnel. Where is the best place for a claustrophobic person to sit?
- A truck driver is going opposite traffic on a one-way street. A police officer sees him but doesn’t stop him. Why didn’t the police officer stop him?
- A young woman is attending her mother's funeral. While there, she meets a man she has never seen before and falls in love immediately. After the funeral she tries to find him but cannot. Several days later she kills her sister. Why?
- An archaeologist digs up two perfectly preserved bodies. He immediately identifies them as Adam and Eve. How can he tell they are Adam and Eve?
- An archaeologist unearths a coin bearing the inscription "57BC". How does he instantly know that it's a forgery?
- Dora died at a very old age on her 24th birthday. How can this be?
- First I threw away the outside and cooked the inside then I ate the outside and threw away the inside. What did I eat?
- How can you add eight 6s together so that the total adds up to 750?
- How can you place a pencil on the floor so that no one can jump over it?
- How can you throw a ball 20 meters, and have it come back to you without hitting anything?
- How could all of your cousins have an aunt who is not your aunt?
- How do you discover something that does not exist?
- How do you drop an egg and never break it?
- How do you make the number one disappear by adding to it?
- How far can a man hike into the forest?
- How is it possible to always find what your looking for in the last place you look?
- How many bananas can you eat if your stomach is empty?
- I have two coins, one is marked George I and one is marked George IV. One is genuine but one is a forgery. Which is the forgery?
- If a rooster lays an egg on the exact peak of a barn, which side does it fall?
- If there are three apples and you take away two, how many do you have?
- If you are running in a race and pass the second place person, what place are you in?
- If you count 20 houses on your right going to the store and 20 houses on your left coming home, how many houses did you count?
- If you have 30 white socks, 22 black socks, and 14 blue socks scattered across the floor in the dark, how many would you have to grab to get a matching pair?
- Imagine you’re in a room that is filling with water. There are no windows or doors. How do you get out?
- In 1990, a person is 15 years old. In 1995 that same person is 10 years old. How is this possible?
- Is an older one-hundred dollar bill worth more than a newer one?
- Lauren lived in a light house. He was so tired that he turn off all the lights and fell asleep. The next morning the realized that he killed 6,000,000 people. How?
- Mary gets in the shower, but surprisingly her hair is not wet when she gets out. How is this possible?
- Mr. Smith has two children. If the older child is a boy, what are the odds that the other child is also a boy?
- No is to negative as yes is to...?
- No matter how terrible things get for the people of the Arctic, they will not eat a penguin. Why not?
- On Christmas eve, when Santa leaves his workshop on the north pole, what direction does he travel.
- On which day of the year do fewest people die?
- Six glasses are in a row. The first three are filled with milk and the last three are empty. By moving only one glass, can you arrange them so that the full and the empty glasses alternate?
- The answer I give is yes, but what I mean is no. What was the question?
- The director of a company wakes early for a morning flight. He realises he forgot some papers at work and goes there. In the office he meets the night watchman, who is leaving for home. The watchman stops the director, tells the director he shouldn't fly. "I had a dream last night," the watchman says. "I saw you crash." He takes the director's hand. "I saw you die sir. I saw you die." The director heeds the advice and sure enough the goes down. The next day the director returns, gives the watchman a generous bonus. Then he fires him. Why?
- The more that there is of this, the less you see. What is it?
- There are 20 birds in a tree. A man comes and shoots one of the birds. How many birds are left?
- There are 5 sisters in a room: Ann is reading a book, Margaret is cooking, Kate is playing chess, Marie is doing the laundry. What is the fifth sister doing?
- There are two sisters: one gives birth to the other and she, in turn, gives birth to the first. Who are the two sisters?
- There is a dog on one side of a lake and a woman on the other. The woman calls the dog over and when he gets there he is not wet at all. How is this possible?
- There were 5 children in a room. Iris drew a picture, Barry played video games, Andrew played chess, and Trina read a book. What is the fifth child, Mindy, doing?
- Three doctors said that Bill was their brother. Bill said he had no brothers. Who was lying?
- Twelve pears hanging high, twelve men passing by. Each took a pear and left eleven hanging there. How can this be?
- Two fathers and two sons are in a car, yet there are only three people in the car. How is this possible?
- What always comes into a house through the keyhole?
- What can fill an entire room without taking up any space?
- What can I not be tomorrow?
- What can you fill a room with that takes up no space?
- What can you hold in your right hand but never in your left hand?
- What can you stick between a 3 and a 4 so that the result is more than three but less than four?
- What coin doubles in value when half is deducted?
- What goes up the hill and down the hill, And spite of all, yet stand still?
- What is a ten letter word that starts with gas?
- What is as big as you are and yet does not weigh anything?
- What is the building that you leave without ever having entered.
- What is the difference between yesterday and tomorrow?
- What is the largest $ amount of change you can have in your pocket without having exact change for $1?
- What is the only question you can't answer yes to?
- What man can shave 10 times a day and still have a beard?
- What was the longest river in the world before the Amazon River was discovered?
- When can you add two to eleven and get one as the correct answer?
- When does 4 - 1 = 5 ?
- When is homework not homework?
- Why can't Kevin, who is now living in Canada, not be buried in the USA?
- You are participating in the swimming finals at the Olympics. In the final few seconds of the race you narrowly pass the swimmer who was in third place. What place did you get?
- You draw a line. Without touching it, how do you make the line longer?
- You have a bucket full with 5 gallons of water. What can you ADD to it in order to make it 3 gallons?
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