Long Riddles

Long riddles with answers test your problem solving skills. These lengthy puzzles test your ability to piece together information and find the answer.

13 Caves and a Thief

There are 13 caves arranged in a circle. There is a thief hiding in one of the caves. Each day the thief can move to any one of the caves that is adjacent to the cave in which he was staying the previous day. And each day, two cops search any two caves of their choice for the thief. So, one cave is searched per cop per day.

13 caves and a thief

The following conditions apply.

  1. The thief may either move to an adjacent cave or stay in the same cave.
  2. The cops can check any two caves each day, they do not need to be adjacent.
  3. The thief only moves to the adjacent cave when the cops are making their rounds.
  4. If the thief moves from cave X to adjacent cave Y and if one of the cops is going to check on either cave X or cave Y, the thief will be caught.

What is the minimum number of days to guarantee in which the cops can catch the thief?

Riddle Answer

Bottles of Milk, Newspaper, Unopened Mails

An old man lives alone in a flat. Because of his old age, he is not able to move comfortably and hence most of the things are delivered to his home.

On Friday while delivering the mail, the postman felt something suspicious in the flat and tried to look inside through the key hole and he saw a blood filled body of the old man.

The police arrived at the scene. On the outside of flat they found two bottles of warm milk, Tuesday newspaper, some unopened mails and some gifts.

Who killed the old man and how did the police know who to arrest?

Riddle Answer

Song with a Lady’s Name

A man was sitting at the bar feeling rather poor. He sees the man next to him pull out $50 note from his wallet.

He turns to the rich man and says to him, “I have an amazing talent: I know almost every song that has ever existed!”

The rich man laughs.

The poor man says, “I am willing to bet you all the money you have in your wallet that I can sing a genuine song with a lady’s name of your choice in it.”

The rich man laughs again and says, “Okay. How about my daughter’s name Joanna Armstrong-Miller?”

The rich man goes home poor. The poor man goes home rich.

What song did he sing? Riddle Answer

Black and Blue Marbles

A king decided to let a prisoner try to escape the prison with his life. The king placed 2 marbles in a jar that was glued to a table. One of the marbles was supposed to be black and one was supposed to be blue.

If the prisoner picked the blue marble, he would escape the prison with his life. If he picked the black marble, he would be executed. However, the king was very mean and he wickedly placed 2 black marbles in the jars without any blue marbles. The prisoner witnessed the king only putting 2 black marbles in the jars.

The jars were not see-through, the jars were glued to the table and the prisoner was mute so he could not say anything. How did he escape with his life?

Riddle Answer