Puzzle 197
What are the next three letters in this sequence:
HDD
TMRUTC
TCSO
TMRD
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Puzzle 198
Every year, just before my birthday, I open my money box to see how much money I have saved.
Imagine my surprise when I found exactly £49.58 made up of equal numbers of 2p, 5p, 10p and 20p.
How many of each coin did I find?
Puzzle Copyright © Kevin Stone
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Puzzle 199
I recently gave a new carriage clock to my friend for a very special birthday.
However, as usual with my presents, it was quite useless as it loses 6 minutes every hour.
I set it using my own accurate clock at midnight, and the clock now shows 10:12am.
I know that it stopped 2 hours ago, so what is the correct time now?
Puzzle Copyright © Kevin Stone
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Puzzle 200
The river Pregel ran through the town of Konigsberg. In the river were two islands, connected to each other and the rest of the city by seven bridges.
The residents of Konigsberg challenged each other to walk through the city, and cross each of the seven bridges exactly once.
Can you find a path that they might have taken?
This is the 'Seven Bridges of Konigsberg' puzzle, tackled by Leonhard Euler in 1736.
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