Difficulty Popularity

Difficulty Popularity

Two friends , Torres and Lampard, meet after a long time.

Torres: Hey, how are you man?

Lampard: Not bad, got married and I have three kids now.

Torres: That's awesome. How old are they?

Lampard: The product of their ages is 72 and the sum of their ages is the same as your birth date.

Torres: Cool..But I still don't know.

Lampard: My eldest kid just started taking piano lessons.

Torres: Oh now I get it.

How old are Lampard's kids?

Torres: Hey, how are you man?

Lampard: Not bad, got married and I have three kids now.

Torres: That's awesome. How old are they?

Lampard: The product of their ages is 72 and the sum of their ages is the same as your birth date.

Torres: Cool..But I still don't know.

Lampard: My eldest kid just started taking piano lessons.

Torres: Oh now I get it.

How old are Lampard's kids?

Difficulty Popularity

Britney tells truth only once a week. Below are a few hints for you:

First Hint: Days are Sunday, Monday and so on.

Second Hint: One day she says that she lies on Monday and Tuesday.

Third Hint: On the next day she says, 'Today is either Thursday, Saturday or Sunday'.

Fourth Hint: On the next day, she says that she lies on Wednesday and Friday.

Can you find out on which day does Britney speaks truth ?

First Hint: Days are Sunday, Monday and so on.

Second Hint: One day she says that she lies on Monday and Tuesday.

Third Hint: On the next day she says, 'Today is either Thursday, Saturday or Sunday'.

Fourth Hint: On the next day, she says that she lies on Wednesday and Friday.

Can you find out on which day does Britney speaks truth ?

Difficulty Popularity

The host of a game show, offers the guest a choice of three doors. Behind one is a expensive car, but behind the other two are goats.

After you have chosen one door, he reveals one of the other two doors behind which is a goat (he wouldn't reveal a car).

Now he gives you the chance to switch to the other unrevealed door or stay at your initial choice. You will then get what is behind that door.

You cannot hear the goats from behind the doors, or in any way know which door has the prize.

Should you stay, or switch, or doesn't it matter ?

After you have chosen one door, he reveals one of the other two doors behind which is a goat (he wouldn't reveal a car).

Now he gives you the chance to switch to the other unrevealed door or stay at your initial choice. You will then get what is behind that door.

You cannot hear the goats from behind the doors, or in any way know which door has the prize.

Should you stay, or switch, or doesn't it matter ?

Difficulty Popularity

You keep tossing a fair coin for twenty times. Each time, the coin lands up with tails up.

What is the probability that if you toss it now, the coin will land with heads up this time?

What is the probability that if you toss it now, the coin will land with heads up this time?

Difficulty Popularity

Rohit is on his way to visit your Grandma, who lives at the end of the state.It's her birthday, and he want to give her the cakes that he has made.Between his place and her grandma house, he need to cross 7 toll bridges.

Before you can cross the toll bridge, you need to give them half of the cakes you are carrying, but as they are kind trolls, they each give you back a single cake.

How many cakes do rohit have to carry with him so he can reach his grandma home with exactly 2 cakes?

Before you can cross the toll bridge, you need to give them half of the cakes you are carrying, but as they are kind trolls, they each give you back a single cake.

How many cakes do rohit have to carry with him so he can reach his grandma home with exactly 2 cakes?

Difficulty Popularity

There are two glasses in front of you. One of the glasses is full of coke and the other glass is full of lemonade. You take a spoonful of coke and mix it into the glass of lemonade. Now the lemonade glass has a mixture of coke and lemonade. You take a spoonful of that mixture and mix it inside the coke glass.

Now what do you think? - The glass with coke has more quantity of lemonade or the glass with lemonade have more quantity of coke mixed with it?

Now what do you think? - The glass with coke has more quantity of lemonade or the glass with lemonade have more quantity of coke mixed with it?

Difficulty Popularity

You can place weights on both side of weighing balance and you need to measure all weights between 1 and 1000. For example if you have weights 1 and 3,now you can measure 1,3 and 4 like earlier case, and also you can measure 2,by placing 3 on one side and 1 on the side which contain the substance to be weighed. So question again is how many minimum weights and of what denominations you need to measure all weights from 1kg to 1000kg.

Difficulty Popularity

Three people enter a room and have a green or blue hat placed on their head. They cannot see their own hat, but can see the other hats.

The color of each hat is purely random. They could all be green, or blue, or any combination of green and blue.

They need to guess their own hat color by writing it on a piece of paper, or they can write 'pass'.

They cannot communicate with each other in any way once the game starts. But they can have a strategy meeting before the game.

If at least one of them guesses correctly they win $50,000 each, but if anyone guess incorrectly they all get nothing.

What is the best strategy?

The color of each hat is purely random. They could all be green, or blue, or any combination of green and blue.

They need to guess their own hat color by writing it on a piece of paper, or they can write 'pass'.

They cannot communicate with each other in any way once the game starts. But they can have a strategy meeting before the game.

If at least one of them guesses correctly they win $50,000 each, but if anyone guess incorrectly they all get nothing.

What is the best strategy?

Difficulty Popularity

There are two villages separated with a river. Each day, four people cross the river through a bridge to work on the other side and earn for their families. On one night when they were returning from work, they noticed that the bridge was about to collapse. Now all of them wanted to cross the bridge before it collapsed as no one wanted to be stuck on that end without their families.

They had just one torch with them and since it was the night time, they could not see without it. The bridge had become weak and it could only accommodate two people at a time. It was going to collapse in just 17 minutes.

The four people took different times to cross the bridge. First one took only a minute, second one took 2 minutes, third one took 5 minutes and the last one took 10 minutes.

How would all of them have managed to cross the bridge in time?

They had just one torch with them and since it was the night time, they could not see without it. The bridge had become weak and it could only accommodate two people at a time. It was going to collapse in just 17 minutes.

The four people took different times to cross the bridge. First one took only a minute, second one took 2 minutes, third one took 5 minutes and the last one took 10 minutes.

How would all of them have managed to cross the bridge in time?

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