Random Puzzles 

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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Alex Smith was born on December 25^th, 1971, yet their birthday is always in the summer.

How is this possible?

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Place letters into the grid such that every row, column, and 2 x 2 block has letters (in any order) that form a common word. Each letter is only used once, and no letter is repeated in the rows / cols / blocks.

Letters allowed: S H O W E R S

A	T		F
			A
G	N	U
		D	E

Note: this puzzle is not interactive, and the squares cannot be clicked.

Puzzle Copyright © Alan Stillson and Frank Longo

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Nursery Playground – Logic Puzzles

At the local nursery school, I was chatting to my daughter's friends and noticed a number of things.

Frankie has mousy coloured hair and the girl with black hair was wearing a green t-shirt.
Lucy is not blonde and Lauren does not have brown hair, Chloe was wearing a blue t-shirt.
The blonde girl was not wearing red and Lauren was not wearing green.
I can't remember who was wearing a yellow t-shirt.
Can you work out the colours of the t-shirt and hair for each child?

Puzzle Copyright © Kevin Stone

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