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 Brain Teaser Reaching Home  Professor Tupolev and his assistant Igor are looking at the University's huge globe. "You know, Herr Professor, my native town is exactly 15,000 Kilometers from here." "So is mine" shouts Professor Tupolev. "We are fellow emigrants" says Igor. "So we are", says the Professor, with a devilish smile. "But... can you tell me what is the maximum possible distance between our two birthplaces?" By courtesy of PFI Matteo Rosa  |
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