which country has won this trophy the most number of times?
Australia
Cricket World Cup
Australia has won the tournament five times, India and West Indies twice each, while Pakistan, Sri Lanka and England have won it once each. 
when was the current world cup trophy introduced It was created for the 1999 championships. which sport is it meant for? Cricket when was the above mentioned tournament played for the first time? June 1975 where? England who won it? West Indies
wiki:1631811
Cricket World Cup [SEP] Introduction
Australia has won the tournament five times, India and West Indies twice each, while Pakistan, Sri Lanka and England have won it once each. The best performance by a non-full-member team came when Kenya made the semi-finals of the 2003 tournament.