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Puzzle 5
Training Stars #2all logic puzzles
The second group of trainee astronauts are all sitting around the rectangular table, waiting to start their first day of training.
From the clues given below, can work out where everyone sits?
The seats are numbered clockwise, with Seat 1 next to Seats 2 and 8. Opposite pairs are Seats 1 & 5, 2 & 8, 3 & 7, and 4 & 6.
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
Puzzle 6
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.
Puzzle 7
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 games.
Finally, on Thursday, I spent the last £12.50 on a book.
How much birthday money did I receive?
