There are four numbers given to you: 2, 3, 4 and 5. You are allowed to use only two mathematical symbols: + and = and come up with a mathematically true equation.
Can you do it?
PS- You can't repeat the symbols or numbers.
3^2 = 4 + 5
(^ is used for squaring the term, it is not a mathematical symbol.)
In a family supper, a grandfather, a grandmother, two fathers, two mothers, four children, three grandchildren, one brother, two sisters, two sons, two daughters, one daughter in law, and one mother in law need to sit at a table.
There are only seven chairs available at the place. How many more chairs do they have to borrow so that everyone can sit down together for the suppers if everybody requires a separate chair?
No other chair is required as there are only seven people:
A Grandfather married to Grandmother.
They have a son who is married to a woman.
Together, they have three children - One son and two daughters.
These are the only seven people
While handling a project, the landscaper is asked by the owner of the mansion that he wants four trees in front of his mansion that are exactly equidistant from each other.
How will he do it?
He will have to form the shape of a tetrahedron. This means that, he will plan three trees on the vertices of an equilateral triangle and then plant one at the exact center. In this way, all the trees will be equidistant from each other.
Arrange the numbers 1, 2, 3, 4, 5, 6, 7, 8 and 9 above and below the division line in a manner that the thus formed fractions equals to 1/3.
You can use one number only once.
Hint:
The numerator will have four digits and the denominator will have five digits.
5832/17496
This fraction will result in 1/3.
Place a mathematical symbol between the numerals 5 and 9 in such a way that the resulting number is greater than 5 but smaller than 9.
If we place a decimal between the numbers it will become 5.9 which is what we needed.
A family is trapped in a jungle. There is a bridge which can lead them to safety. But at one time, the bridge can only allow two people to pass through. Also, all of them are afraid of the dark and thus, they can’t go alone.
Father takes 1 minute to cross, mother takes 2 minutes, son takes 4 and the daughter takes 5 minutes. While crossing the time taken will be according to the slower one. How can they all reach at the other side in the minimum possible time ?
12 minutes
Father and Mother goes first: 2 minutes.
Father comes back: 2+1 = 3 minutes.
Both children go to mother: 3 + 5 = 8 minutes.
Mother comes back to Father: 8 + 2 = 10 minutes.
Mother and Father go: 10 + 2 = 12 minutes.
Thus, all of them reach the other sides in 12 minutes.
On a certain day, Kian celebrated his birthday. Two days later, his older twin brother Shane celebrated his birthday.
Is this even possible? How can it be?
When the mother of Shane and Kian went into labor, she was travelling in a boat. Shane, the elder one was born on 1st of March. Just after his birth, the boat crossed the international time zone and Kian was born on 28th of February. Now, if it is a leap year, the younger brother will celebrate his birthday two days before the elder one.
Calculate the number of degree between the hour hand and the minute hand of an analogue clock that is displaying a time of 3:15 at present.
This question can be a bit tricky. But if you pay attention, you can solve it. When fifteen minutes have passed after three, the hour hand must have moved exactly one fourth of an hour. Thus both the hands will make an angle of 7.5 degree between them.
Daniel walks into a movie theater. While in the movie, he suddenly smiles delightfully. About a couple of minutes later, he seems shocked. He walks out of the theater, goes to a bridge and jumps over the edge killing himself.
Why did he do it?
This puzzle can only be solved with lateral thinking, there is no logical reasoning behind it.
Daniel had been the father of two identical twins named Justice and Damien. Ironically, both of them had starkly opposite temperament. While Justice was kind and generous, Damien was quite violent and rude.
On a certain day, Justice approached his father and told him that Damien had killed a man. Daniel rushed to the crime scene with Justice and saw Damien huddled over a dead man. Rage took Daniel over and he started fighting with his son eventually killing him accidentally. When the police reached the crime scene, he arrested Daniel and he was put in prison for ten years. He received a note from Justice while he was in prison in the very first month. The note said that Justice could never forgive his father for what he did with Damien and that he will never see him again.
After moving out of the prison, Daniel came to know that Justice had become a junior film star. He also came to know that a film starring him in a minor role was running in the theater. He quickly bought the ticket to the nearest theater and went inside the hall filled with excitement. When he saw Justice on the silver screen, he could not help but smile feeling proud of his son. But soon after the camera zoomed over the back of his neck and he saw a birthmark that belonged to Damien.
He understood that in reality, Damien had killed the man and the one whom he father took as Damien was actually Justice trying to save the man. He is shocked at the revelation and struck with grief. Thus he decides to kill himself by jumping from the bridge.
Adam gave half of the apples he had plus one more to Eve. He gave half of the remaining ones plus one more to Diana. Now, Adam was left with just one apple.
Can you find out how many did he have in the beginning?
10
In such type of questions we can come to a conclusion by working our way backwards.
He is left with one apple in the end. He gave half of what he had plus one to Diana. If we remove the extra one, the he must have had two apples. Since now both of them have half of the remaining ones, it must be 2 * 2 = 4 apples.
Again move back. Adam gave half of what he had plus one extra to Eve. Thus if we remove that extra one and give it back to Adam, then Adam must have 5 apples. Since he gave half to Eve, it means he must have had 5 * 2 = 10 apples in the beginning.
Thus Adam had 10 apples in the beginning.