Random Puzzles 

Place the digits from 1 to 9 in each closed area so that the sum of the digits in each large square is the same.

1 has already been placed.

Puzzle Copyright © Cihan Altay

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Looking at a usual clock, how many times …

… does the minute hand pass the hour hand between midday and midnight?

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Two fine fellows were working very hard all day at the local coal mine.

One of the fellows managed to get a really dirty face, but the other fellow managed to stay clean.

When they reached the end of their day and re-joined the surface in the lift, the fellow with the dirty face simply went home, however, the fellow with the clean face rushed off to wash.

Why?

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How many squares, of any size, can be found on a standard chessboard?
How many rectangles, of any size, can be found on a standard chessboard?
Remember when counting the rectangles, that squares are also rectangles.

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