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Difficulty: EasyPuzzle 409

Puzzle IconCan you find a five digit number which has no zeros no digit is repeated, where:

The first digit is a prime number.
The second digit is the fifth digit minus the first digit.
The third digit is twice the first digit.
The fourth digit is the third digit plus three.
The fifth digit is the difference between the first digit and the fourth digit.

[Ref: ZCVZ] © Kevin Stone

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Difficulty: EasyPuzzle 410

Last weekend I travelled to my sister's house in Glasgow, around 250 miles away. I started on Saturday morning at 7am, traffic was heavy in places, and at times I was stationary. I arrived sometime after lunch.

On Sunday, it was time to make my way home, over exactly the same route. I left my sister's at exactly the same time, 7am, however, this time I came straight home without any travel delays, arriving home just before lunch.

How likely is it that I was at exactly the same point at exactly the same time on both days?

[Ref: ZGAI]

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Difficulty: HardPuzzle 411

You have 12 coins, one of which is fake.

The fake coin is indistinguishable from the rest except that it is either heavier or lighter, but you don't know which.

Can you determine which is the fake coin and whether it is lighter or heavier using a balance scale and only 3 weighings?

Puzzle Image

[Ref: ZLKY]

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Difficulty: EasyPuzzle 412

Puzzle IconDaft Dave did such a good job of the housing estate, he was asked to paint the room numbers on all of the doors of the fourth floor of the local hotel.

He painted all of the numbers from 400 to 499.

How many times did he paint the number 4?

[Ref: ZULZ] © Kevin Stone

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Direct Link: www.brainbashers.com?ZULZ

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