#581 - Easy Logic Puzzle

Five lovely ladies(Sophia, Isabella, Madison, Emma and Olivia) planned a picnic.

They each buy one thing each for the picnic.

Sophia, Emma and Olivia got a drink : orange-Juice, apple-juice, and mango-juice.
Olivia got the drink with the same letter as the one in her first name.
Emma loves mango-juice.
The other two bring some food : chocolates and pizza.
Also Madison is allergic to cheese.

So which ladies bought what ?

Easy Logic Puzzle

Sophia : apple-juice
Olivia : orange-Juice
Emma : mango-juice
Madison : chocolates
Isabella: pizza

#582 - Logical Thinking Question

Bruce is found dead in a bare field.
Nobody killed Bruce,
Bruce did not commit suicide.

Inspector Sheldon found a bag just few meters away from Bruce which could save his life.
What was in the bag ?

Logical Thinking Question

A parachute

#583 - Teacher Student Riddle

An inspection by the superintendent of Delhi Public School was scheduled on the next day. The class teacher Shraddha Kapoor knew that he would be asking questions from her class and she would have to choose a pupil to answer. To offer a perfect impression over him, the teacher explained certain instructions to the students to maximize the chances of getting correct answer every time.

What did she say to the students?

Teacher Student Riddle

Shraddha drilled the students to raise their hands with a condition. Those who knew the answer must raise their right hand and those who didn’t must raise their left hands. So she will know whom to choose from all.

#584 - Mystery Death Riddle

Adam was moving down in an elevator. The elevator stopped and the remorse on his face was clear.He knew Eve had died.

How did he know?

Mystery Death Riddle

Eve was admitted in hospital was under life support system. Adam had just visited her and was moving down the elevator when it stopped suddenly. He knew it was the power cut and the backup generators were clearly not working or the elevator would have worked. Thus he assumed that even the life support system had stopped.

#585 - Winning Strategy Logic Puzzle

Alpha and Beta are playing bets. Alpha gives $10 to Beta and Beta deals four card out of a normal 52 card deck which are chose by him completely randomly. Beta keeps them facing down and take the first card and show it to Alpha. Alpha have a choice of either keeping it or to look at the second card. When the second card is shown to him, he again has the choice of keeping or looking at the third which is followed by the third card as well; only if he does not want the third card, he will have to keep the fourth card.

If the card that is being chosen by Alpha is n, Beta will give him . Then the cards will be shuffled and the game will be played again and again. Now you might think that it all depends on chance, but Alpha has come up with a strategy that will help him turn the favor in his odds.

Can you deduce the strategy of Alpha ?

Winning Strategy Logic Puzzle

To keep odds in his favor, Alpha must choose a card from the first three whenever he sees a 9 or higher card.

This is because the probability that all cards that are selected randomly by beta are below 9 is 32*231*30*29 / 52*51*50*49 = 0.133.
In such a case, you lose from $2 to $9 with equal probability = 0.133/8 = 0.0166

Let us now calculate the probability of the four cards being of value 9 or higher which will be equal to 1 – 0.133 = 0.867.

As Alpha stops at the first sight of 9 or a higher card, he can possibly win -1, 0, 1, 2, 3 with an equal probability of 0.867/5 = 0.173

This will give him an overall expected winning amount of 0.14 per game he plays.

Also note that if Alpha decides to stop at a card 10 or higher, the expected winning amount will be 0.09 per game. It can be a strategy to win more but will not stand quite effective.

With any other choice of stopping, Alpha will be having negative chances of winning.

#586 - Link Chain Puzzle

As you see in the picture, there are four 3-link chains. All you have to do is join them into a big 12-link chain. For joining two closed links, one of the links must be cut and placed onto the other link for closing.

How many minimum links will you have to cut to make the big chain ?

Link Chain Puzzle

Just 3.

Refer the picture. All you have to do is cut three links from a single 3-link chain and then you can use them to join three other 3-link chains to make a big 12-link chain

#587 - Long Disgusting Riddle

Andrew was absent from school for most of the days and thus the principal called him. He asked Andrew for an explanation to which Thomas replied the following:

I don't have enough to attend school. I must have eight hours of sleep every day and if added for 365 days, it makes 122 days in a year. We have weekends off adding to 104 days of the year. The summer holidays are roughly 60 days. I take an hour for each meal adding to 3 hours a day and 45 days a year. I must spend 2 hours every day for exercising and recreation to stay physically and mentally fit which adds up to 30 days in a year.

If you add all of them, you will get 361 days as the answer. So I am left with only 4 days to attend the school.

Though the principal knows that Andrew is messing with his head, he is unable to point where Andrew is going wrong. Can you tell how he is calculating in a wrong manner?

Long Disgusting Riddle

Fore mostly, Andrew is adding up a lot of double count7s. He is adding the time spent sleeping, eating and relaxing etc. separately while without deducting that time from the weekends and other holidays. Also, weekends occur is summer holidays as well. Thus these hours are being counted several times.

Another thing is that the school does not happen for 24 hours and thus the 4 days will count as 16 days of school even if a school commence for six hours.

#588 - Paradox Brain Teaser

The following sentence is false. The preceding sentence is true.
Are these two sentences true or false?

Paradox Brain Teaser

They are neither. It is a paradox.For first to be true, second must be false which makes the first false as well. Thus it does not work.

#589 - Hard Clock Puzzle

A pocket watch is rotated voluntarily. See the picture given with this question. If the colored hands represents the hour, second and minute hands of the watch, can you determine the time? Hint: It's somewhere in the afternoon.

Hard Clock Puzzle

There are sixty marks, so logically each mark is there for a minute.

Now, the hour hand is on a mark when the minute hand is on [0, 12, 24, 36, 48]. When the minute hand is on a mark, the second hand is on noon. But the blue hand cannot be the second hand. (It would be on noonand it would be eighteen minutes past/before a full hour.)

a) Green is on twelve. Red indicates twenty four minutes. Blue indicates forty two [minutes] = 8 + 2/5 [hours] = 8:24
b) Green is on twelve. Red indicates thirty six minutes. Blue indicates eighteen [minutes] = 3 + 3/5 [hours] = 3:36
c) Red is on twelve = 3:36
d) Red is on twelve = 8:24.

Also, keep in mind that the watch can be rotated upside down as well.

#590 - Logic Picture Riddle

Check the figure given with this question. You have a square. What you have to do is cut and reassemble the square such that you create a Red Cross sign that has the same volume as that of the square.

Logic Picture Riddle

The figure given is self-explanatory. But if you are unable to understand, here is what we did. We cut along the lines and remove the blue parts. Now rotate the paper a bit and place the cut parts like it is shown.