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Number puzzle from month name

by 2 Comments

Here is a list showing the month and a number for each

January 73
February 83
March 51
April 52
May 31
June 42
July 41
August 63

Decipher the logic and find the number for September.


Click here to see Answers
Answer is 93.
How?
If you observe first number is the number of letters and the second number is the number of vowels present in the month spelling. Thus for september it should be 93.

4 bottles and water puzzle

by 6 Comments

There are two bottles of 10 liter; each completely filled with water. Now 2 persons having empty bottles of 4 liter and 5 liter want to take 2-2 liters of water. You can use only these 4 bottles (10 liter-full, 10 liter-full, 5 liter-empty, 4 liter-empty) to transfer the water. Wasting or throwing of water is not permitted. How can this be done?

Note: It is assumed that you can not measure water level by comparing water level, or by judging, it should be exact 2 liters of water finally in each 4 and 5 liter water bottle.

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13 caves and a thief

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Find Minimum number of days to guarantee to catch the thief

13 caves and a thief puzzle

13 caves and a thief puzzle

There are 13 caves arranged in a circle. There is a thief hiding in one of the caves. Each day the the thief can move to any one of of the caves that is adjacent to the cave in which he was staying the previous day. And each day, you are allowed to enter any two caves of your choice.

What is the minimum number of days to guarantee in which you can catch the thief?

Note:

  1. Thief may or may not move to adjacent cave.
  2. You can check any two caves, not necessarily be adjacent.
  3. If thief and you exchange your caves, you will surely cross at some point, and you can catch the thief immediately.

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How many children, ladies and gents are there?

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One family of 20 members have 20 chapatis to eat, finally

  1. Every child gets 1/2 chapati
  2. Every Lady in the house gets 2 chapatis
  3. And every gentleman gets 3 chapatis to eat.

How many Child, Ladies and Gents are there in the family?

See Answers

There are two possible answers:
Answer1: Number of children = 14, Ladies= 5 and Gents = 1
Answer2: Number od children = 16, Ladies = 0 and Gents = 4.
How?
We can form the mathematical equations and solve them, lets assume number of children = x, ladies = y and gents = z.

Then we can form these two equations

  1. x + y + z = 20(Total number of people in family)
  2. x/2 + 2y + 3z = 20 (Total number of chapati’s)

Now we can solve above two equations as below

x/2 + 2(y+z) + z = 20
x/2 + 2(20 -x) + z = 20 (replaced y+z from first equation)
40 + z -3x/2 = 20
3x/2 = 20 +z
as z > 0 => 3x/2 > 20, x = 14, 16, 18...

We can see that y becomes negative for any value of x greater than or equal to 18,thus x = 14 and 16 are two possible values. we can get the corresponding values of y and z as well.

Number Puzzle #58

by 4 Comments

IF 1= 5; 2 = 10; 3= 30, Then 4 = ?

IF 1 = 5 2 = 10 3 = 30 Then 4 = ??

IF 1 = 5
2 = 10
3 = 30
Then 4 = ??


Check your answer:-

Tried enough already?
See Explanation
Answer is 120.
How?
If we observe
10 = 2×5
30 = 3×10
So every next result = multiplication of first number and previous result. thus the answer to above number puzzle should be 4×30 = 120.

6 sawal 6 challenges

by 62 Comments

Collection of these 6 very interesting riddles

  1. Who’s birthday does not came every year?
  2. What does not get dry in sunlight, it even grows?
  3. Which fruit is sweet but still not available for sale in market?
  4. What brakes as soon as you name it?
  5. What is that which runs without legs and never returns back?
  6. Which fish can not swim in sea?

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Artists and paintings #56

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If 5/2 artists make 5/2 paintings using 5/2 canvases in 5/2 days then how many artists are required to make 25 paintings using 25 canvases in 25 days?

Check your answer:-

Tried enough already?
See Solution
Answer is 5/2 artists required to make 25 paintings in 25 day.
How?
If 5/2 artists make 5/2 paintings using 5/2 canvas in 5/2 days,
We can say that 5/2 artists make 1 painting using 1 canvas in 1 day.(its not 1 artist, most people do this mistake).

From above we can say 5/2 artists can make 25 paintings using 25 canvases in 25 days.

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