#21 - Fresh Egg Trick Riddle

A container contains hundred eggs. They can be either fresh or rotten. What is sure is the fact that there is at least one fresh egg in that container.

If you are asked to pick two eggs randomly from the container, at least one of them will be rotten.

Can you calculate how many eggs in that container are fresh ?

View Answer Discuss

Only one egg in that container is fresh.

The question tells us that at least one egg in that container is fresh. Then the question says when two eggs are picked at random, at least one egg will be rotten. This concludes that all the other 99 eggs are rotten or there would have been possibility of picking two fresh eggs as well.

#22 - Who Killed Billy Puzzle

Billy "The Knife," the infamous tough guy, was found murdered one night in an alleyway behind the nightclub he used to frequently visit. The police brought in three suspects on the next morning. One of the officers interrogated the three men and noted down the following statements.

Alex:
1. I did not kill Billy.
2. Jimmy is not my friend.
3. I knew Billy.

Jimmy:
1. I did not kill Billy.
2. Alex and Dexter are friends of mine.
3. Alex did not kill Billy.

Dexter:
1. I did not kill Billy.
2. Alex lied when he said that Jimmy was not his friend.
3. I do not know who killed Billy.

Only one of the three is guilty, and only one of each man statements is false. Who killed Billy the Knife ?

View Answer Discuss

Jimmy

It is not Alex because if it was, Alex 1 and Jimmy 3 would both be false, which would make Alex 2 and Jimmy 2 both true which is a contradiction.
It is not Dexter because if it was, Dexter 1 and Dexter 3 would both be false, which is not possible.
Therefore, it must be Jimmy.

#23 - Flaw Statement Riddle

"That shopping mall always remain crowded. This is the reason why nobody goes there."

Can you find a flaw in this statement ?

View Answer Discuss

If nobody goes there, the restaurant cannot be crowded.

#24 - Relationship Statement Riddle

Each of these statements (which are true) refers to seven out of the eight living members of a family. You will find that the statement either refers to them by their personal name or through their relationship with another member. The statements are:
a) Jacob"s wife"s sister"s husband"s mother"s son is Patrick"s cousin"s father.
b) Sia"s grand-daughter"s cousin"s father"s sister-in-law is Gerry"s son-in-law"s wife.

Now if Annabelle has no children, what relationship does she share with Michael?

PS: There can be two solutions to this problem.

View Answer Discuss

Solution 1:
Annabelle is Michael"s daughter. This is because Michael is Sia"s son. Also he is married to one of the Gerry"s daughters. Gerry"s other daughter is married to Jacob and Patrick is their son.

Solution 2:
Michael and Jacob are brothers. Sia is their mother. In this case, "Jacob"s wife"s sister"s husband"s mother"s son" refers to Jacob himself. Thus, Patrick is Michale"s son and Annabelle is Jacob"s daughter which means that Annabelle is Michael"s niece.

#25 - Deductive Logic Statements Puzzle

A school server was hacked. The headmaster suspects five friends based on the fact that they were really good such knowledge. He calls all of them in his room and the five students give the following statements:

Peter:
1. I did not do it.
2. I have never hacked in my entire life.
3. Christy did it.

Jamie
1. I did not do it.
2. The hack was done from within the network.
3. I do not like Misty.

Casey
1. I did not do it.
2. I have never seen Misty in my life.
3. Christy did it.

Christy
1. I did not do it.
2. Misty did it.
3. Peter was lying when he said I did it.

Misty
1. I did not do it.
2. Jamie did it.
3. Casey and I used to be friends.

Now, you know that out of the three statements, every student has speaker two truths and one lie. Reading all these statements, can you identify who hacked the server?

View Answer Discuss

Jamie hacked the server.

Let us assume that Peter is a hacker. If so, his first statement is false and also the third statement is false. But as per the condition, he cant speak more than one lie. The same goes for Casey, Christy and Misty.

If you assume the same for Jamie however, the condition stands true.

#26 - Difficult Story Riddle

The great emperor Akbar once ruled India. He was well known for his intelligence. But along with that, he was known for the Nine Gems in his court. One of the nine gems was Birbal, a quick witted and extremely intelligent man. The stories of his wit were widely popular.

Once a king ruling in a distant land heard of Birbal. To check his wit, he sent an invitation and called him to visit his land. Akbar allowed Birbal to go and he took off on the journey.

Upon reaching that kings kingdom, he was welcomed with flowers. He was then escorted to the palace of the king. Upon entering the palace, Birbal found that there were six people sitting in front of him adorning the same robe. They were also lookalike and it was hard to judge who the real king was.

After a couple of minutes, Birbal approached one of them and bowed in front of him greeting him.

That was the real king. How did Birbal know who was the real king ?

Difficult Story Riddle
View Answer Discuss

When the king asked Birbal, he replied, "Your Majesty, all the other people were looking at you closely to imitate you adequately. While, you were calmly sitting with your composed demeanor. This is because you did not need to look for any support however the commoners always look for their kings support."

This impressed the King a lot. He was showered with gifts and jewels. When Birbal returned back to his kingdom, he made Akbar proud.

#27 - Logic IQ Statement Puzzle

Can you find any error in the following sentence?

A taxi was standing outside a fort at night. A man came out of the fort, opened the gate and hit the taxi driver killing him instantly. He took out all the money out of the meter and started running till he was caught by a local sheriff.

Logic IQ Statement Puzzle
View Answer Discuss

There is no money in the taxi meter. It just consist of a timer. The children from small towns might not be aware of the fact.

#28 - Infosys Written Aptitude Interview Quest

Alex speaks truth only once a day in a week. Below are a few hints for you:

First: Days are Sunday, Monday and so on.
Second: One day he says, "I lie on Monday and Tuesday".
Third: On the next day, he says, "Today is either Thursday, Saturday or Sunday".
Fourth: On the next day, he says, "I lie on Wednesday and Friday".

Can you identify the day on which he speaks truth?

Infosys Written Aptitude Interview Quest
View Answer Discuss

Alex speaks truth on Thursday.

#29 - Hard Adobe Interview Puzzle Question

There are a hundred statements.
First person says: At least one of the statements is false.
Second person says: At least two of the statements is false.
Third person says: At least three of the statements are false.
Fourth person says: At least four of the statements are false.
..
..
..
Hundredth person says: At least a hundred of the statements are false.

Analyzing it, how many statements do you think are false and how many are right?

Hard Adobe Interview Puzzle Question
View Answer Discuss

The hundredth statement is surely false as it says that at least a hundred of the statements are false.

But in a situation if that is correct, then hundred statements cannot be right.
This implies that the hundredth statement is wrong and that the first statement is true.

Similarly ninety nine statements can’t be true as if they were correct, then two statements would become correct i.e. the first and the ninety ninth.

But the ninety ninth statement says that at least ninety nine are wrong.
This implies that the ninety ninth statement is false and that second is correct.

If we go on calculating in the similar fashion, we will come to the conclusion that:
The first fifty statements are right and the remaining fifty statements are false.

#30 - Logic Statement Puzzle

A journalist was investigating a sacred cult in the jungles of Africa when he was caught by one of the person. He was confined in a cave till the leader arrived. The leader told him that he need to tell him a statement. If he thinks the statement is true, then the journalist head will be chopped off. If he thinks that the statement is false, his head will be smashed with a hammer.

What statement did the journalist make to survive?

Logic Statement Puzzle
View Answer Discuss

The journalist said "My head will be smashed with a hammer".