John and Jenni are a married couple. They have two kids, one of them is a girl. Assume safely that the probability of each gender is 1/2.
What is the probability that the other kid is also a girl?
Hint: It is not 1/2 as you would first think.
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, the mother takes 2 minutes, the 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 the other side in the minimum possible time?
Given that
(78)^9 = 6
And (69)^4 = 11
Can you find out
(99)^2 =?
(Note: This is Logical, not Mathematical)
You visit a home for specially-abled children on the occasion of Christmas where you meet with 50 children. You have a box of chocolates containing 50 chocolates exactly.
What if you were asked to one chocolate to each child in a manner that one chocolate still remains in the box? Is it possible?
Joseph organises an exotic office New year party at the beach to his important fellow employees.
Following are the important people that will come to the party
1. Joseph
2. Joseph 2 girlfriends- Carol Vanstone and Tracey Hughes
3. The sales head Clay Vanstone.
4. Clay Vanstone 2 associates.
5. Mr. Jeremy and his Secret Tab.
They all need to cross a small river to reach the beach, however, Joseph has got just one boat.
There are few rules for crossing the river.
1. The capacity of the boat is limited to just two people.
2. Clay Vanstone associates will not stay with Joseph without Clay Vanstone.
3. Carol Vanstone and Tracey Hughes will not stay with the Clay Vanstone without Joseph.
4. Mr. Jeremy would never leave the Secret Tab alone.
5. Secret Tab counts as a person.
6. Only Joseph, Clay Vanstone or Mr. Jeremy can drive the boat.
7. The two girlfriends Carol Vanstone and Tracey Hughes will not stay with the Clay Vanstone without Joseph.
8. No Associates would stay with Joseph without their Clay Vanstone.
9. Mr.Jeremy will not leave the Secret Tab alone.
Two batsman each on 94 runs. Seven runs needed to win in last 3 balls. Both make 100*. How?
John is 45 years older than his son Jacob. If you find similarities between their ages, both of their ages contain prime numbers as the digits. Also, John's age is the reverse of Jacob's age.
Can you find their ages?
John is on an island and there are three crates of fruit that have washed up in front of him. One crate contains only apples. One crate contains only oranges. The other crate contains both apples and oranges.
Each crate is labelled. One reads 'apples', one reads 'oranges', and one reads 'apples and oranges'. He know that NONE of the crates have been labeled correctly - they are all wrong.
If he can only take out and look at just one of the pieces of fruit from just one of the crates, how can he label all of the crates correctly?
our enemy challenges you to play Russian Roulette with a 6-cylinder pistol (meaning it has room for 6 bullets). He puts 2 bullets into the gun in consecutive slots, and leaves the next four slots blank. He spins the barrel and hands you the gun. You point the gun at yourself and pull the trigger. It doesn't go off. Your enemy tells you that you need to pull the trigger one more time, and that you can choose to either spin the barrel at random, or not, before pulling the trigger again. Spinning the barrel will position the barrel in a random position.
Assuming you'd like to live, should you spin the barrel or not before pulling the trigger again?
In my garden, I have many trees but only one of them is the mango tree. In these mango trees, there are some mangoes(as expected).
But after a strong wind, there are neither mangoes on the tree nor on the ground. Explain?
You walk into a room that contains a match, a kerosene lamp, a candle and a fireplace. What would you light first?
In Canada, a mathematical puzzle must be solved in order to win the lottery to classify it as a “game of skill” not gambling.