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Difficulty: Easy4 Star RatingPuzzle 66

What is represented by this BrainBat?

D 12"12"12"12"12"12"

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[Ref: ZRIK] Copyrighted. 



Difficulty: Easy4 Star RatingPuzzle 67

Which of the five black shapes is identical to the red one? There may be more than one which is exactly the same.

Puzzle Image

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[Ref: ZAUE] © Robert A. Hartmann. 



Difficulty: Medium4 Star RatingPuzzle 68

Can you complete these 5-letter words?

.S.G.
..R.F
.ZU..
E..X.
.P..C
..LN.
.W..M
...JO
Q...A
.V.K.
I..H.
.B.Y.
..DT.

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[Ref: ZCIV] © Kevin Stone 



Difficulty: Medium4 Star RatingPuzzle 69

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

The largest cog has 21 teeth and the others have 17, 12 and 10 respectively.

What is the fewest number of revolutions the largest cog must make so that all of the cogs are back in their starting position?

Cogs

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[Ref: ZOUQ] © Kevin Stone 



Difficulty: Easy4 Star RatingPuzzle 70

Using the BrainTracker grid below, how many words can you find? Each word must contain the central D 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: 64 words. Good: 42 words. Average: 30 words.

MEN-SDO-INI

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[Ref: ZFCD] © Kevin Stone 


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