Logic Riddles & Puzzles
Logic riddles challenge you to use deductive and inductive reasoning to arrive at the answer. Unlike wordplay riddles, these require careful analysis of the facts presented in the puzzle. They often involve scenarios with characters, situations, or constraints that you must reason through step by step.
204 riddles
If it were three hours later than it is now, it would be twice as long until midnight as it would be if it were four hours later. What time is it now?
As I went across the bridge, I met a man with a load of wood which was neither straight nor crooked. How is this possible?
What is broken but right two times a day?
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?
Without fingers, I point. Without arms, I strike. Without feet, I run. What am I?
Three spies, suspected as double agents, speak as follows when questioned: Albert: "Bertie is a mole." Bertie: "Cedric is a mole." Cedric: "Bertie is lying."...
How can you place a pencil on the floor so that no one can jump over it?
Suppose there are twin brothers, one which always tells the truth and one which always lies. (So in this case they both know what is true and false, or as you p...
You have two ropes. Each rope takes one hour to burn. These ropes are not identical, nor are they uniform; i.e. it does not necessarily take half an hour for ha...
A ladder hangs over the side of a ship anchored in port. The bottom rung of the ladder touches the water. The distance between rungs is 30cm, and the length of...
Usain and Mo race one another over 100m. When Usain crosses the finish line, Mo is only at the 90m mark. They agree to have a second race, but to make it fairer...
There are three light switches outside a room. Inside is a single light bulb, controlled by one of the three switches. You need to determine which switch operat...
I cannot be other than what I am, Until the man who made me dies, Power and glory will fall to me finally, Only when he last closes his eyes.
Two girls have the same parents and were born at the same hour of the same day of the same month, but they are not twins. How can this be possible?
You are playing a game of dodge ball with two other people, John and Tom. You're standing in a triangle and you all take turns throwing at one of the others of...
A man is on the run from the police, after stealing large gold bars. He has 3 gold bars in his arms - each weighing 10kg each. The problem is, as he runs from t...
Walking home one day, you take a short cut along the train tracks. The tracks cross a narrow bridge over a deep gorge. At the point you are 3/8 of the way acros...
Dead on the field lie ten soldiers in white, Felled by three eyes, black as night. What happened?
James ordered a fishing rod, priced at $3.56. Unfortunately, James is an Eskimo who lives in a very remote part of Greenland and the import rules there forbid a...
A man went on a trip with a fox, a goose and a sack of corn. He came upon a stream which he had to cross and found a tiny boat to use to cross the stream. He co...
There is a man lying dead in his office. He is all alone and the doors and windows are locked from the inside. There are no marks on him. There is no blood. The...
A man decides to buy a nice horse. He pays $600 for it and he is very content with this strong animal. After a year the value of the horse has increased to $700...
You have a 5 gallon bucket, a 3 gallon bucket, and a hose to fill them up. You need to get 4 gallons. You have no means of measuring how many gallons are in eac...
Jack is a farmer and owns some chickens. One day, he took a basket of fresh eggs to the market to sell. The first person bought half of all the eggs in the bas...