All entries for October 2009

October 26, 2009

Swallowing Elephants

Elephants always wear pink trousers.
Every creature that eats honey can play the bagpipes.
Anything that is easy to swallow eats honey.
No creature that wears pink trousers can play the bagpipes.

Therefore: Elephants are easy to swallow.

Is the deduction correct or not?

October 19, 2009

Digital Cubes

The number 153 is equal to the sum of the cubes of its digits:

13 + 53 + 33 = 1 + 125 + 27 = 153

There are three other 3-digit numbers with the same property, excluding numbers like 001 with a leading zero.

Can you find them?

October 12, 2009

The Statue of Pallas Athene

According to a puzzle book published in the Middle Ages, the statue of the goddess Pallas Athene was inscribed with the following information:

“I, Pallas, am made from the purest gold, donated by five generous poets. Kariseus gave half; Thespian an eighth. Solon gave one-tenth; Themison gave one-twentieth. And the remaining nine talents’ worth of gold was provided by the good Aristodokos.”

How much did the statue cost in total? [A talent is a unit of weight, roughly one kilogram.]

October 05, 2009

Return of the Maths Challenge!

Hoard of Mathematical TreasuresAfter a long summer break, the Maths Challenges will be returning to your twitter feed next week!

The Warwick Maths Challenges are based on the books of Professor Ian Stewart.

Prof Stewart’s latest book – Hoard of Mathematical Treasures – is out now and we will bring you some of the best challenges and brain teasers every Monday morning.

About Warwick Challenges

Warwick Challenges are mini academic challenges from University of Warwick professors, set via the micro-blogging service Twitter (and also via this blog).
Follow us on Twitter

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