#puzzleoftheday by @GarethFfowc
Some examples of #puzzleoftheday maths puzzles by @GarethFfowc. The puzzle is often linked to the date it was posted on Twitter. No advanced mathematics is needed to solve them but a willingness to think outside the box can often help.
Puzzle 1
#puzzleoftheday 28/02
The number ‘three’ repeats ‘e’,
‘nine’ repeats ‘n’.
What is the largest number that doesn’t have any repeats?— Gareth Ffowc Roberts (@GarethFfowc) February 28, 2014
Puzzle 2
#puzzleoftheday 03/06
If I walk at 3mph I’ll be an hour late.
If I jog at 6mph I’ll be an hour early.
How far is it?— Gareth Ffowc Roberts (@GarethFfowc) June 3, 2016
Puzzle 3
#puzzleoftheday 18/06
The pages of a book are numbered from 1 onwards and use a total of 1806 digits.
What’s the number of the last page?— Gareth Ffowc Roberts (@GarethFfowc) June 18, 2015
Puzzle 4
#puzzleoftheday 23/06
23 is the 6th term in the Fibonacci sequence 1, 4, 5, 9, 14, 23,…
and in which other Fibonacci sequence?— Gareth Ffowc Roberts (@GarethFfowc) June 23, 2016
Puzzle 5
#puzzleoftheday 02/07 At 7am there is 1 amoeba in a box. It halves every minute. By 8am the box is full. At what time was it half full?
— Gareth Ffowc Roberts (@GarethFfowc) July 2, 2013
