IQ PUZZLE

IQ PUZZLE - 31 August

You have two strings whose only known property is that when you light one end of either string it takes exactly one hour to burn. The rate at which the strings will burn is completely random and each string is different.

How do you measure 45 minutes?

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Distance Puzzle

Distance Puzzle - 30 August

Two friends decide to get together; so they start riding bikes towards each other. They plan to meet halfway. Each is riding at 6 MPH. They live 36 miles apart. One of them has a pet carrier pigeon and it starts flying the instant the friends start traveling. The pigeon flies back and forth at 18 MPH between the 2 friends until the friends meet.

How many miles does the pigeon travel?

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Monday Cipher Puzzle

Monday Cipher Puzzle - 29 August

Can you decipher the following common phrase?

T M C
A U O
H S M
W T E

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Math Teaser

Math Teaser - 26 August

Find three whole, positive numbers that have the same answer when multiplied together as when added together.

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Challenging Logic Puzzle

Challenging Logic Puzzle - 25 August

In front of you, there are 9 coins. They all look absolutely identical, but one of the coins is fake. However, you know that the fake coin is lighter than the rest, and in front of you is a balance scale. What is the least number of weightings you can use to find the counterfeit coin?

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Maths Teaser

Maths Teaser - 24 August

Try to find out a multi-digit number that if multiplied by the number 9 or any of its multiplications products (18, 27, 36, 45,..) will result in the multiplication factor repeated (n) number of times

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Challenging Mind puzzle

Challenging Mind puzzles - 23 August

You are the ruler of a medieval empire and you are about to have a celebration tomorrow. The celebration is the most important party you have ever hosted. You've got 1000 bottles of wine you were planning to open for the celebration, but you find out that one of them is poisoned.

The poison exhibits no symptoms until death. Death occurs within ten to twenty hours after consuming even the minutest amount of poison.

You have over a thousand slaves at your disposal and just under 24 hours to determine which single bottle is poisoned.

You have a handful of prisoners about to be executed, and it would mar your celebration to have anyone else killed.

What is the smallest number of prisoners you must have to drink from the bottles to be absolutely sure to find the poisoned bottle within 24 hours?

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Cipher Puzzle

Cipher Puzzle - 22 August

What does this message say?

G T Y O R J O T E O U I A B G T

Hint : Count the letters and try splitting the letters up into groups.

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Challenging Puzzle

Challenging Puzzle - 19 August

Outside a room there are three light switches. One of switch is connected to a light bulb inside the room.
Each of the three switches can be either 'ON' or 'OFF'.

You are allowed to set each switch the way you want it and then enter the room(note: you can enter the room only once)

Your task is to then determine which switch controls the bulb ??

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What Am I Riddle

What Am I Riddle - 18 August

A word I know,
Six letters it contains,
Subtract just one,
And twelve is what remains.

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Missing Number in this Sequence

Missing Number in this Sequence - 17 August

Can you discover the missing number in this series?

37, 10, 82
29, 11, 47
96, 15, 87
42, ?, 15

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4 Doors Riddle

4 Doors Riddle - 16 August

You are an expert on paranormal activity and have been hired to locate a spirit haunting an old resort hotel. Strong signs indicate that the spirit lies behind one of four doors. The inscriptions on each door read as follows:

Door A: It's behind B or C
Door B: It's behind A or D
Door C: It's in here
Door D: It's not in here

Your psychic powers have told you three of the inscriptions are false, and one is true. Behind which door will you find the spirit?

For Solution : Click Here


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Train Puzzle

Train Puzzle - 15 August

Charles walks over a railway-bridge. At the moment that he is just ten meters away from the middle of the bridge, he hears a train coming from behind. At that moment, the train, which travels at a speed of 90 km/h, is exactly as far away from the bridge as the bridge measures in length. Without hesitation, Charles rushes straight towards the train to get off the bridge. In this way, he misses the train by just four meters! If Charles would, however, have rushed exactly as fast in the other direction, the train would have hit him eight meters before the end of the bridge.

What is the length of the railway-bridge?

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Short Easy Riddle

Short Easy Riddle - 12 August

A boy was at a carnival and went to a booth where a man said to the boy, 'If I write your exact weight on this piece of paper then you have to give me $50, but if I cannot, I will pay you $50.' The boy looked around and saw no scale so he agrees, thinking no matter what the carny writes he'll just say he weighs more or less. In the end the boy ended up paying the man $50. How did the man win the bet?

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Gold Bar Fewest Cut Puzzle

Gold Bar Fewest Cut Puzzle - 11 August

A worker is to perform work for you for seven straight days. In return for his work, you will pay him 1/7th of a bar of gold per day. The worker requires a daily payment of 1/7th of the bar of gold. What and where are the fewest number of cuts to the bar of gold that will allow you to pay him 1/7th each day?

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NewsPaper Puzzle

NewsPaper Puzzle - 10 August

A newspaper is supposed to have 60 pages
but pages 24 and 41 are missing.
Which other pages won't be there?

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CAT Exam Puzzle

CAT Exam Puzzle - 9 August

5+3+2 = 151022
9+2+4 = 183652
8+6+3 = 482466
5+4+5 = 202541
THEN ;
7+2+5 =

For Solution : Click Here

Water Pails Puzzle

Water Pails Puzzle - 8 August

If you had an infinite supply of water and a 5 quart and 3 quart pails, how would you measure exactly 4 quarts? and What is the least number of steps you need?

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Hardest Mathematical Columbus Puzzle

Hardest Mathematical Columbus Puzzle - 5 August

The Puzzle: Here is a famous prize problem that Sam Loyd issued in 1882, offering $1000 as a prize for the best answer showing how to arrange the seven figures and the eight 'dots' .4.5.6.7.8.9.0. which would add up to 82

For Solution : Click Here

Funny Answer to This Riddle

Funny Answer to This Riddle - 4 August

Right now Mum is 21 years older then her child In 6 years her child will be 5 times younger than she. Where is daddy?

For Solution : Click Here

Top 10 Simple Puzzles

Top 10 Simple Puzzles

Simple Puzzles 1 : Science Puzzle
Difficulty ★☆☆☆☆     Popularity ★★★☆☆


How can you throw a ball as hard as you can and have it come back to you even if it doesnt hit anything there is nothing attached to it and no one else catches or throws it?

For Answers/Discussion : Click Here
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Simple Puzzles 2 : Sound Series Pattern
Difficulty ★★☆☆☆     Popularity ★★★☆☆


Can you figure out the logic I used to decide the order of the following words: gun, shoe, spree, door, hive, kicks, heaven, gate, line, den

For Answers/Discussion : Click Here
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Simple Puzzles 3 : Missing Number in this Sequence
Difficulty ★★☆☆☆     Popularity ★★★☆☆


Can you discover the missing number in this series?

37, 10, 82
29, 11, 47
96, 15, 87
42, ?, 15

For Answers/Discussion : Click Here
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Simple Puzzles 4 : Simple Simple Google Interview Puzzle
Difficulty ★★☆☆☆     Popularity ★★★☆☆


The puzzle is if the shopkeeper can only place the weights in one side of the common balance. For example if shopkeeper has weights 1 and 3 then he can measure 1, 3 and 4 only. Now the question is how many minimum weights and names the weights you will need to measure all weights from 1 to 1000. This is a fairly simple problem and very easy to prove also.  Answer for this puzzle is given below.

For Answers/Discussion : Click Here
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Simple Puzzles 5 : October Train Puzzle
Difficulty ★★☆☆☆     Popularity ★★★☆☆


An express train takes 3 seconds to enter tunnel which is 1 km long.
If it is traveling at 120 km an hour, how long will it take to pass completely through the tunnel

For Answers/Discussion : Click Here
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Simple Puzzles 6 : Number Series Puzzle
Difficulty ★★☆☆☆     Popularity ★★★☆☆


What letter is next in this sequence?
O, T, T, F, F, S, S, E, __
**Hint:Its a Number Series Puzzle

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Simple Puzzles 7 : Salman age puzzle
Difficulty ★★☆☆☆     Popularity ★★☆☆☆


salman's youth lasted one sixth of his life. He grew a beard after one twelfth more. After one seventh more of his life, he married. 5 years later, he and his wife had a son. The son lived exactly one half as long as his father, and salman died four years after his son.

How many years did salman live?

For Answers/Discussion : Click Here
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Simple Puzzles 8 : Train Puzzle
Difficulty ★★☆☆☆     Popularity ★★☆☆☆


Charles walks over a railway-bridge. At the moment that he is just ten meters away from the middle of the bridge, he hears a train coming from behind. At that moment, the train, which travels at a speed of 90 km/h, is exactly as far away from the bridge as the bridge measures in length. Without hesitation, Charles rushes straight towards the train to get off the bridge. In this way, he misses the train by just four meters! If Charles would, however, have rushed exactly as fast in the other direction, the train would have hit him eight meters before the end of the bridge.

What is the length of the railway-bridge?

For Answers/Discussion : Click Here
==============================================

Simple Puzzles 9 : Distance Puzzle
Difficulty ★★☆☆☆     Popularity ★★☆☆☆


Two friends decide to get together; so they start riding bikes towards each other. They plan to meet halfway. Each is riding at 6 MPH. They live 36 miles apart. One of them has a pet carrier pigeon and it starts flying the instant the friends start traveling. The pigeon flies back and forth at 18 MPH between the 2 friends until the friends meet.

How many miles does the pigeon travel?

For Answers/Discussion : Click Here
==============================================

Simple Puzzles 10 : Sepetember Cipher Puzzle
Difficulty ★★☆☆☆     Popularity ★★☆☆☆


If EELS + MARK + BEST + WARY = EASY
What does HELP + BARK + WARD + LEAD equal?

For Answers/Discussion : Click Here
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Last Updated:2011-10-23

Interesting Number Puzzle

Interesting Number puzzle - 3 August

A number with an interesting property:

When I divide it by 2, the remainder is 1.
When I divide it by 3, the remainder is 2.
When I divide it by 4, the remainder is 3.
When I divide it by 5, the remainder is 4.
When I divide it by 6, the remainder is 5.
When I divide it by 7, the remainder is 6.
When I divide it by 8, the remainder is 7.
When I divide it by 9, the remainder is 8.
When I divide it by 10, the remainder is 9.

It's not a small number, but it's not really big, either.
When I looked for a smaller number with this property I couldn't find one.

Can you find it?


For Solution : Click Here


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Pyramid Number Puzzle

Pyramid Number Puzzle - 2 August

The below is a number puzzle. It should be read left to right, top to bottom.
1
1 1
2 1
1 2 1 1
1 1 1 2 2 1
? ? ? ? ? ?
? ? ? ? ? ? ? ?

Question 1: What is the next two rows of numbers?
Question 2: How was this reached?

For Solution : Click Here

Ant Problem Probability Quiz

Ant Problem Probability Quiz - 1 August

Three ants are sitting at the three corners of an equilateral triangle. Each ant starts randomly picks a direction and starts to move along the edge of the triangle. What is the probability that none of the ants collide?

For Solution : Click Here