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How many games to determine a champion?

June 14, 2013 by puzzler 2 Comments

There are 97 baseball team participating in a tournament. The champion is chosen by the usual elimination scheme. That is, all teams are divided into pairs, and two teams of each pair play against each other. The loser of each pair is eliminated, and the remaining teams are paired up again.
How many games must be played to determine a champion?
[Read more…]

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River crossing: she-goat, wolf and cabbage

June 13, 2013 by puzzler 6 Comments

A farmer is returning from market, where he bought a she-goat, a wolf and cabbage. On the way home he must cross a river. His boat is little, allowing him to take only one of the three things. He can’t keep the she-goat and the cabbage together (because the she-goat would eat it), nor the she-goat with the wolf (because the she-goat would be eaten). How shall the farmer get everything on the other side (without any harm)?

[Read more…]

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Deadly choice puzzle

June 12, 2013 by puzzler 5 Comments

Once a man was caught for a minor offense and was presented in king Akbar’s darbaar
Akbar wanted to test the man and said: “You must give me a statement. If it is true, you will be killed by lions. If it is false, you will be killed by trampling of wild buffalo.”

Man was not able to answer and in the end requested help from Birbal, As it was minor offense Birbal decided to help and suggested him the statement.

After hearing the statement, king Akbar had to let the man go.

Can you think of the statement that Birbal suggested?
[Read more…]

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Why manholes are round?

June 10, 2013 by puzzler 6 Comments

Why manhole covers are round in shape then square and any other shape?

Round shape manhole cover

Round shape manhole cover

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0.999… = 1 #55

June 7, 2013 by puzzler Leave a Comment

0.9999999…….. = 1, true or false?

0.999.... = 1, Right or Wrong?

0.999…. = 1, Right or Wrong?


See AnswerHide Answer
Its Right, yes 0.999 followed by infinite 9’s is equal to 1.

Proof 1 for 0.999… = 1

x = 0.999...
10x = 9.999...
10x - x = 9.999... - 0.999...
9x = 9
x = 1

Proof 2 for 0.999… = 1

1/3 = 0.333...
3x(1/3) = 3x(0.333...) = 0.999...
1 = 0.999...

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Did i speak to Tina or Meena ?

June 5, 2013 by puzzler 2 Comments

Tina & Meena are twins. One of them lies while the other is truthful. I asked one of them,
“Does Tina lie?” “Yes”, was the answer.
Did I speak to Tina or Meena?
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What is the next number in sequence? #54

June 4, 2013 by puzzler 1 Comment

 

what is the next number in sequence

what is the next number in sequence

See AnswerHide Answer


Next number in the series will be 3263442.
How?
every number in the sequence= (previous number)x(previous number +1)
thus next number in this sequence will be 1806*1807 = 3263442.

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Who is the thief puzzle reloaded

May 31, 2013 by puzzler 1 Comment

 

horse donkey and camel were stolen, 3 suspects, find who stole what ?

horse donkey and camel were stolen, 3 suspects, find who stole what ?

If you have not tried its simpler version, try that first click here for Who is the thief puzzle part 1
A horse, a donkey and a camel were stolen.
Three suspects: Robert, Scott and Tommy. All we know that each person stole one animal, but we do not know who stole which. Here are the investigation statements.

Robert: Tommy stole the horse.
Scott: Tommy stole the donkey.
Tommy: They both were lying. I did not steal the horse or the donkey.

Later on, police found out =>

The man who stole the camel told a lie.
The man who stole the horse told the truth.

Can you find out who stole which?
[Read more…]

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Get number 28 # 53

May 30, 2013 by puzzler Leave a Comment

How you can get number 28 by using following numbers and operators

Numbers: 1, 5, 7 and 8.
Operators: +, -, * and /
You can use ( ) brackets as well.

Rules:-

  1. You can use each number only once.
  2. You can not use 1 and 5 as 15.
  3. You have to use all of the above number mentioned (1,5,7 and 8)


See AnswerHide Answer

There are multiple solutions
Solution 1: (8-5+1)*7 = 28
Solution 2: 7*5 – 8 + 1 = 28

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Prisoner and two doors puzzle

May 28, 2013 by puzzler 3 Comments

 

prisoner two doors with lady and tiger

prisoner two doors with lady and tiger

A prisoner is faced with a decision where he must open one of two doors. Behind each door is either a lady or a tiger. They may be both tigers, both ladies or one of each.

If the prisoner opens a door to find a lady he will marry her and if he opens a door to find a tiger he will be eaten alive. Of course, the prisoner would prefer to be married than eaten alive :).

Each of the doors has a statement written on it. The statement on door one says, “In this room there is a lady, and in the other room there is a tiger.”

The statement on door two says, “In one of these rooms there is a lady, and in one of these rooms there is a tiger.”

The prisoner is informed that one of the statements is true and one is false.

Which door should the Prisoner open?
[Read more…]

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