BrainBashers - Random Puzzles

Puzzle 1

You've been asked to buy the cakes for the school party and you've been given $100 to buy 100 cakes.

Donuts cost 56c, chocolate eclairs cost $2.26 and iced rolls cost 92c.

How can you spend exactly all of the money on the 100 cakes?

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Puzzle 2

A farmer buys chicken feed for 47c per tonne, pig feed for $1.23 per tonne and cattle feed for $1.44 per tonne. The feed can only be purchased by the tonne, and part tonnes aren't sold.

How much of each would they have if they bought 100 tonnes for $100?

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Puzzle 3

The legendary BrainBashers calendar has had a small problem.

Here is a listing showing the number of days in each month:
January    73
February   83
March      51
April      52
May        31
June       42
July       41
August     63
September  ?

Using the same rules, how many days are in September?

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Puzzle 4

Looking at a usual clock, how many times …

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

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