No.
Yes, New Zealand dual hosted with Australia the first Rugby World Cup in 1987.
New Zealand won the first ever rugby world cup beating France in the final
No they have not hosted the world cup as yet.
I do not think Georgia has ever been to any world cup as yet.
Actually look at it this way, ALL the schools in South Africa has rugby as a sport, the amount of schools who has soccer as a sport is substantially less, the population didn't even know much about soccer until we hosted the world cup. Our rugby teams actually compete on a high level, win games and claim titles. Rugby has been South Africa's national sport for decades and still is, soccer has to earn it's place before it can ever come close to becoming the national sport. According to the IRB South Africa has 434,219 registered players and 4100 Registered coaches which exclude those playing it at school. Not only that but the rugby competitions hosted by south Africa outnumbers the amount of soccer competitions. That in which we represent our country best in on an international level is without a doubt rugby.
No, Greece have never hosted the World Cup.
No Pakistan have never hosted the world cup.
No Belgium have never ever hosted a world cup .
No, Iceland has never hosted a world cup.
No they have not hosted it yet.
England hosted the World Cup in 1966.