10 May
2016
10 May
'16
9:17 a.m.
The important word missing in the problem statement was "padlock". * Fred Lunnon <fred.lunnon@gmail.com> [May 10. 2016 16:19]:
He sends her box and ring, locked with his padlock.
She returns it, double-locked with her padlock.
He unlocks his padlock and resends.
She unlocks her padlock.
Thinks "just as well this wasn't fresh caviar!"
WFL [...]