Barry R. Clarke, Author at ��è��Ƶ

Puzzle #133: Can you work out the dimensions of Tina’s toy brick?

Barry R. Clarke — Wed, 29 Sep 2021 18:00:00 +0000

Can you solve this week’s fiendish puzzle Think Tank? Plus, the answer to puzzle #132

Puzzle #124: How many rings have thieving jackdaws got in their nests?

Barry R. Clarke — Wed, 28 Jul 2021 18:00:00 +0000

Can you solve this week’s fiendish logic challenge, Next-door jackdaws? Plus the answer to puzzle #123

Puzzle #119: How many nuts did two families have before a food fight?

Barry R. Clarke — Wed, 23 Jun 2021 18:00:00 +0000

Can you solve this week’s fiendish puzzle, Nutty neighbours? Plus the answer to puzzle #118

Puzzle #115: Can you work out where Roman the robot will end up?

Barry R. Clarke — Wed, 26 May 2021 18:00:00 +0000

#115 A random robot

Roman the test robot is being given one final roam before being consigned to the scrapheap where he can rust in peace.

He has been programmed to make four equal length steps. For his first move, he can travel one step east, west, north or south. Each of his subsequent three steps must be at right angles to the previous move. The direction of each move is selected by a random number generator, with all four possibilities being equally probable.

What is the chance that Roman will finish where he started?

#114 Lara’s birthday

Solution

Francesca’s birthday is 29 February, Martha’s is 1 March. Those born on the 1st were 1 on their first birthday, but not 31 (and so on) the day before. Meanwhile, nobody can celebrate their 29th birthday on 29 February because their age on that date can only be a multiple of 4.

Quick quiz #103

1 What name is given to the large columns of ice on the surface of glaciers that often form where crevasses intersect?

2 NASA astronaut Michael Collins’s first space flight took place during which NASA mission?

3 The modern classification system for clouds is based on nomenclature proposed by which amateur meteorologist in 1802?

4 Which of the four fundamental forces do leptons not experience?

5 Psittrichas fulgidus is commonly known as Pesquet’s parrot, but it is also associated with which literary character?

Answers on page 55

Answers

1 Seracs

2 Gemini 10

3 Luke Howard

4 The strong force

5 Count Dracula – its black and red plumage has led some to call it the Dracula parrot

Puzzle #112: What is the diameter of the third barrel?

Barry R. Clarke — Wed, 05 May 2021 17:12:00 +0000

Can you solve this week’s fiendish puzzle A muse in barrels? Plus the answer to puzzle #111, Eclair-voyance

Barry R. Clarke, Author at ��è����Ƶ