Many of Ramanujan's results, especially from his lost notebook, are so strange and surprising that it would seem that no one else, either in the present or the future, would have had the foresight to discover them. Five entries from Ramanujan's lost notebook have been chosen for presentation and detailed discussion. Each of them is surprising. All have been proved, except for one (as of this writing). Most of these entries have their origins in number theory. The first 10 minutes of this talk will be devoted to a history of the lost notebook.