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Difficulty: MediumPuzzle 106

ClockYou have the misfortune to own an unreliable clock.

This one gains exactly 15 minutes every hour.

It is now showing 3.00am and you know that is was correct at midnight, when you set it.

The clock stopped four hours ago, what is the correct time now?

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[Ref: ZSIE] © Kevin Stone 



Difficulty: EasyPuzzle 107

How many squares, of any size, can you find on this chess board that do not contain a Rook?

Chess board

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[Ref: ZDPX] © Kevin Stone 



Difficulty: EasyPuzzle 108

Old CarI started a journey to my Aunt's yesterday with a full tank of gasoline, 10 gallons, but at that exact moment my gasoline tank sprang a leak.

I managed to drive 50 miles, exactly one hour, before coming to a complete stop with an empty tank.

I know that the car manages 25 miles per gallon.

How quickly was I losing gasoline?

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[Ref: ZRNJ] © Kevin Stone 



Difficulty: MediumPuzzle 109

What is the sum of all of the numbers from 1 to 1000?

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[Ref: ZONR]  



Difficulty: EasyPuzzle 110

Using the BrainTracker grid below, how many words can you find? Each word must contain the central P and no letter can be used twice, however, the letters do not have to be connected. Proper nouns are not allowed, however, plurals are. Can you find the nine letter word?

Excellent: 29 words. Good: 22 words. Average: 17 words.

YXH-OPL-NOE

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[Ref: ZXVC] © Kevin Stone 


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