Puzzle 1
Training Stars #2 - Logic Puzzles
The second group of trainee astronauts are all sitting around the table, waiting to start their first day of training.
From the clues given below, can work out where everyone sits?
Seat 1 is next to Seat 2 and Seat 8, etc. Seat 5 is across from Seat 1, and Seat 7 is across from Seat 3, etc. Seat 2 is a higher seat number than Seat 1, etc.
Harvey has a higher seat number than Jennie.
Peter is across from Harvey.
Neither Joyce nor Lia is in seat 8.
Rick is across from Kenny, and Rick is also next to Joyce.
Lia is next to Kenny.
Jennie is at Seat 4 and next to Harvey.
Peter is next to Lia.
Mark has the remaining seat.
Puzzle Copyright © Randall Fine
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Puzzle 2
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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Puzzle 3
Below, 10 nine-letter words have been broken into chunks of three letters.
These chunks have been mixed up, no chunk is used twice, and all chunks are used.
Can you determine what the 10 words are?
cer ent ead rat uti spr
ful oun pro ann ope ock
nce een oat est liv ion
nou sev ion ast hou akf
bre bea ens dim bed seb
Puzzle Copyright © Kevin Stone
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Puzzle 4
A very long time ago, at the beginning of the week, I was given some money for my birthday.
On Monday, I spent a quarter of the money on clothes.
On Tuesday, I spent one third of the remaining money on music.
On Wednesday, I spent half of the remaining money on food.
Finally, on Thursday, I spent the last £1.25 on a book.
How much birthday money did I receive?
Puzzle Copyright © Kevin Stone
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