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Difficulty: MediumPuzzle 1511

You have the misfortune to own an unreliable clock. This one loses exactly 10 minutes every hour. It is now showing 1.00am and you know that is was correct at midnight, when you set it. The clock stopped 1 hour ago, what is the correct time now?

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[Ref: ZLOA] © Kevin Stone 



Difficulty: HardPuzzle 1512

What number comes next in this sequence:

3 24 102 312 777 ==?==

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[Ref: ZUCY] © Kevin Stone 



Difficulty: HardPuzzle 1513

At what distance from the earth it is possible to see exactly 1/3 of the earth's surface?

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[Ref: ZRUM]  



Difficulty: MediumPuzzle 1514

What are the next two numbers in this sequence:

202 122 232 425 262 728 ==?== ==?==

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[Ref: ZNDM] © Kevin Stone 



Difficulty: MediumPuzzle 1515

I once cashed a cheque at the bank. I had spent £1.20 before I realised the bank clerk had made a mistake. He had transposed the pounds with the pence. I now had exactly 7 times the value of the original cheque. What was the original cheque's value?

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[Ref: ZDLZ] © Kevin Stone 


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