General Knowledge Quiz for Saturday, 5 May 2018

A new general knowledge quiz is available every day. Try today's quiz or work through our archive of daily and themed quizzes.

Question 1: What equation is considered to be remarkable for its "mathematical beauty", because 3 basic arithmetic operations occur exactly once each (addition, multiplication, and exponentiation), and it links five fundamental mathematical constants: (the numbers 0, 1, π, e, and i)?