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Deductive Math Problem

There is a non vegetarian restaurant which sells chicken pieces in orders of 6, 9 and 20. Calculate the maximum number of chicken pieces you cannot order from that restaurant ?

Classic Logic Puzzle

If the puzzle you solved before you solved the puzzle you solved after you solved the puzzle you solved before you solved this one, was harder than the puzzle you solved after you solved the puzzle you solved before you solved this one, was the puzzle you solved before you solved this one harder than this one?

Sherlock Holmes Riddles

Sherlock breaks into a crime scene. The victim is the owner who is
slumped dead on a chair and have a bullet hole in his head. A gun lies on the floor and a cassette recorder is found on the table.
On pressing the play button, Sherlock hears the message
'I have committed sins in my life and now I offer my soul to the
great lord'....following a gunshot.
Sherlock smiles Of-course its a murder.

Why did he think so?

English word with all vowels

What English word contains all the vowels a-e-i-o-u in alphabetical order ?

Month Puzzle - Decode the number

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 = ?

Intelligent Trader with 3 Sacks and 90 Coconuts

An intelligent trader travels from 1 place to another carrying
3 sacks having 30 coconuts each. No sack can hold more
than 30 coconuts. On the way he passes through 30 checkpoints
and on each checkpoint he has to give 1 coconut for each sack he is carrying. Maximum how many coconuts he can save when he reach last check point.

How old are John and Julia?

Julia is as old as John will be when Julia is twice as old as John was when Julia's age was half the sum of their present ages. John is as old as Julia was when John was half the age he will be 10 years from now. How old are John and Julia?

Gold Coin Barrels

There are 10 barrels of gold coins. In that, some of the barrels contain 1 gram gold coins and some of the barrels contain 2 gram gold coins. There is a weighing machine which is allowed to weigh only once. Which of the barrels contain 2 gram coins?

Opaque Cube Puzzle

You are making an opaque cube (ie you cannot see through its sides). It can be any size that you want it to be. Where do you place the cube so that you can see as many sides as possible?

Box Packing Puzzle

Three boxes are all labeled incorrectly, and you must get the labels right. The labels on the boxes read as given below.

To gain the information you need to move the labels to the correct boxes, you may remove a single item from one of the boxes. You may not look into the boxes, nor pick them up and shake them, etc.

Can this be done? If so, how? If not, why not?

Murder in the Desert

This is a story about three people (A, B and C) crossing a desert. A hated C and decided to kill him - he poisoned the water in his sack (only C had water). B also wanted to kill C (not knowing that the water of C had been already poisoned) and so B made a hole into the sack of C and the water spilt out. A few days later C died of thirst.
Who was the murderer - A or B?

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