Main content

Today Puzzle #544

Puzzle No. 544 – Tuesday 13 August

Imagine that a monster has been discovered which grows at such a rate that it doubles its size every day. If it is put in a box with volume 1m³ when it is born it will completely fill the box after 10 days. How many days will it be before it fills half the box?

Today’s #PuzzleForToday has been set by David Feather a retired maths education lecturer

Click here for the answer

9 days

More fiendish brain-teasers and quizzes on Â鶹¹ÙÍøÊ×Ò³Èë¿Ú Radio...