About a dentist and an old axe Question: say your great grandfather bought a new axe in the year 1900 and it was handed down and you now owned it, you would have a 115 year old axe. But if you father replaced the handle in 1965 and you replaced the head in 1992, how old would the axe be? Hmmm... After arriving in Hanoi at 5 Am it was a pleasure to walk to our place of accommodation and stretch the legs. The friendly manager opened up for us and told us that the...