Suppose you flip a coin three times.
What is the probability of getting exactly one heads?
(In reply to No solution yet? Nonsense!
by imre bokor)
There are some problems whose solution just says there's no solution, as such is impossible, such as Bascule's Book. Other times there are variations on a puzzle that are offered in the comments on a given puzzle, such as my latest comment on Don't Be a Square, where I propose a generalization for a 270-degree arc, which I have no idea how to solve.
Posted by Charlie
on 2003-05-24 07:49:01