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Common Answers

Have you entered July's Common Answers?

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Difficulty: Medium

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Puzzle 386

I have a machine which has four sequential cog wheels in constant mesh.

The largest cog has 168 teeth and the others have 49, 32 and 15 respectively.

How many revolutions must the largest cog make before each of the cogs is back in its starting position?

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[Ref: ZTFU] © Kevin Stone 



Difficulty: Easy

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Puzzle 387

Starting with the 6 in the bottom left corner, what is the highest total you can make, if you only move up or right, using the mathematical signs on the way?

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[Ref: ZWYX] © Kevin Stone 



Difficulty: Medium

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Puzzle 388

By changing the second letter of each word below, you can make another valid word.

Can you change each word such that the second letters will reveal an eleven letter word when read downwards.

Therefore, what now reads VOKAHLIUPPW will be a real word.

OVAL
POST
SKIN
MALT
WHEN
SLAB
MISS
FUND
APED
SPED
SWAY

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[Ref: ZLRW] © Kevin Stone 



Difficulty: Medium

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Puzzle 389

Place the digits 1 to 8, into the grid. The numbers you can see are the totals for the surrounding numbers.

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[Ref: ZILN] © Kevin Stone 



Difficulty: Easy

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Puzzle 390

Using the BrainTracker grid below, how many words can you find? Each word must contain the central K 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: 34 words. Good: 22 words. Average: 18 words.

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[Ref: ZDRZ] © Kevin Stone 


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