must admit i'm still puzzling over this one, been all over the fruit markets , on google etc, but couldn't find anything,
http://www.theanswerbank.co.uk/Quizzes-and-Puz zles/Question381032.html
http://www.rambutan.com/
and again must admit i've never seen or heard of a rambutan, but putting it in google (as your suggestion) think you must be right as its the only thing that seems to fit the picture, (would have helped if they'd put it in colour) !
thanks john fox, i will go with your answer .