PuzzlersWorld.com

Guess the pincode

by 3 Comments

A person forgot his 5 digit pin code, but he remembers some hints.

  1. 1st digit is square of 2nd digit.
  2. Sum of 2nd and 3rd digit makes 10.
  3. 4th digit is 2nd digit+1.
  4. Sum of 5th and 3rd digit makes 14.
  5. Sum of all 5 digits = 30

Can you guess the person’s pin code from above hints ?


See Answer
Pin code is 93747.
How?
Lets assume second digit is x, then first digit should be x^2 and fourth digit should be x+1.

also assume, 3rd digit is y then 5th digit should be 14-y.
So the number will look like this:-
<x^2><x><y><x+1><14-y>

As we also know the sum of all digits, we can say

x^2 + 2x +1 +14 = 30
(x+1)^2 = 16
x+1 = 4
x = 3

As sum of 2nd and third digit is 10 => x+y = 10 => y=7
Thus the pin code is 93747.

Missing numbers in series

by 3 Comments

 

missing numbers in the series 4, 10, 22, 46, ?, ?, 382

missing numbers in the series 4, 10, 22, 46, ?, ?, 382


Find the missing numbers in this series: 4, 10, 22, 46, _____, _____, 382
See Answer

Missing numbers in the series are: 94 and 190.

How ?
Every number in the series is following this pattern
Next number = (previous number)*2 + 2;

I am a 8 Letter Word

by 1 Comment

I am a 8 Letter Word.
I am kept Secret from Everyone.
My 2nd, 3rd, 4th Letter Spell an Animal.
My 4th, 5th, 6th, 7th, 8th Letter is a Weapon.
My 1st, 2nd, 8th Letter is used for Writing an Exam.
My 3rd, 4th Letters are the Same.

“Guess What Am I” ???

Tried enough already?

How many games to determine a champion?

by 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…]

River crossing: she-goat, wolf and cabbage

by 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…]

Deadly choice puzzle

by 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…]

Social

privacy policy