195+ Logic Riddles with Answers
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?
We travelled the sea far and wide. At one time, two of my sailors were standing on opposite sides of the ship. One was looking west and the other one east. And at the same time, they could see each other clearly.
How can that be possible?
Whoever makes it, tells it not; whoever takes it, knows it not; and whoever knows it, wants it not. What is it?
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 the ladder is 270cm.
If the tide is rising at a rate of 15cm per hour, how long will it be before the water reaches the top rung?
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, Usain will begin 10m behind the starting line. All things being equal, who would you expect to win the race?
A man is shown a portrait painting. He looks closely, then exclaims rather cryptically: “Brothers and sisters have I none, but that man’s father is my father’s son.”
Who is the man in the portrait?
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 operates the bulb.
You can turn the switches on and off as many times as you wish (they are all off to begin with), but may only enter the room once. There is no one there to help you. The door to the room is closed, and there are no windows, so you cannot see inside. How can you discover which switch operates the bulb?
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.