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Can you draw a line through all of the edges in this picture?
Each side is broken into 2 or 3 edges, and there are also 7 edges inside that you have to cross. The line must be continuous, and cross each edge exactly once.
[Ref: ZKPQ]
Hint: Try this with a piece of paper.
Answer:
There is no possible way to complete the line, there will always be one edge left  or you have to cross an edge twice.
This puzzle is the same as the famous 'Seven Bridges of Konigsberg' problem first solved by Euler.
In that problem, the task was to find a closed path that crossed each of the seven bridges of Konigsberg (now Kaliningrad, Russia) exactly once.
Puzzle 182
Which one of these sentences is the odd one out?
David ushered cartooned kittens.
Simon wanted another nail.
Every artistic girl loves Easter.
Badgers rarely eat any more.
Will rabbits eat nettles?
Can rare animals nobble elephants?
The initial letters of the words spell BREAM, a fish. The other sentences all spell birds.
DUCK  David ushered cartooned kittens.
SWAN  Simon wanted another nail.
EAGLE  Every artistic girl loves Easter.
* BREAM  Badgers rarely eat any more.
WREN  Will rabbits eat nettles?
CRANE  Can rare animals nobble elephants?
Puzzle 183
Many years ago, a cruise liner sank in the middle of the Pacific Ocean.
The survivors luckily landed on a remote desert island.
There was enough food for the 220 people to last three weeks.
Six days later a rescue ship appeared, unluckily this ship also sank, leaving an additional 55 people stranded on the island to now share the original rationed food.
The food obviously had to be rerationed, but everyone was now on onehalf of the original ration, so how many days in total would the food last for, from the day of the original sinking?
Many years ago, before modern education in the new millennium, one problem in schools was basicspelling and grammar.
To combat this and raiseachievement, teachers were advised to start at the very beginning, at the youngest age.
Once they had managed to breathe new life into lessons, progress came quickly  success was then guaranteed.
How many spelling errors would modern scholars identify in this passage?
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