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Random Puzzles


Difficulty: Medium

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Puzzle 1

Starting with HEAD, change one letter at a time until you have the word TAIL.

Each change leaves the other letters in their original places and must result in a proper word.

What is the minimum number of steps required to achieve this change?

HEAD
....
....
....
TAIL

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[Ref: ZYCP] © Kevin Stone 



Difficulty: Medium

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Puzzle 2

I once cashed a cheque at the bank. I had spent £9.24 before I realised the bank clerk had made a mistake. He had transposed the pounds with the pence. I now had exactly 5 times the value of the original cheque. What was the original cheque's value?

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[Ref: ZQLY] © Kevin Stone 



Difficulty: Easy

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Puzzle 3

Imagine a small chess board, 3 by 3.

If you place a knight on the top left hand corner, how many different squares can the knight reach in three or fewer moves?

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[Ref: ZQUE]  



Difficulty: Hard

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Puzzle 4

In this long division, each number has been replaced by another. The answer has also been removed. Can you determine the answer?

       ****
     ------
75 | 796767
     791
      --
       57
       30
       --
        86
        82
        --
         47
         47
         --
          9

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[Ref: ZUKF] © Kevin Stone 



Difficulty: Medium

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Puzzle 5

I am compiling the new BrainBashers world almanac and it now contains lots more pages.

I know that it takes 333 digits to print the page numbers in sequence. How many numbered pages does the book have and how many times does the number 3 appear?

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[Ref: ZNWV] © Kevin Stone 


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