I am giving lots of talks over the next few days. On Saturday I am at Think On in Cambridge and performing with the Festival of the Spoken Nerd. On Sunday I am at the South Place Ethical Society in London and then on Tuesday I am speaking at the Anomalistic Research Unit in London. Hope you can make it!
OK, to the puzzle. Five people order a square pizza. The first person dives in an eats a quarter of the pizza. The other four people have to divide the remaining three-fourths into four equal and identically shaped slices. The cuts must be straight. How must they cut the remaining pizza in order to produce four identical slices?
As ever, please do NOT post your answers, but do say if you think you have solved the puzzle and how long it took. Solution on Monday.
I have produced an ebook containing 101 of the previous Friday Puzzles! It is called PUZZLED and is available for theKindle (UK here and USA here) and on the iBookstore (UK here in the USAhere). You can try 101 of the puzzles for free here.