How many people is “two pairs of twins twice”?
(Don’t google the answer. This is a classic riddle, so try to answer it yourself.)
Source: P. Winkler, Mathematical Mind-Benders.
Thanks to those who sent in answers.
The answer is 8. It looks like there are four multiples of two in the phrase: “two”, “pairs”, “twins” and “twice” leading some to guess 16.
But a twin is only one person 🙂