Misc: how many legs does an arachnid have?

Questions

United Airlines 747 jet rips open in flight from Honolulu to New Zealand, 9 passengers sucked out of plane, many injuries.?

A London pedestrian walks 20 miles backward and 20 miles forward in 8 hours.?

Renoir, painter, born.?

Enrico Caruso (in Italy), singer, born.?

First aircraft carrier "Ranger" launched.?