River
The Nile
Dog breed
Chihuahua
Mountain
Mount Everest
Day
21 June (winter solstice)
Mammal
Blue whale
Wall
Great Wall of China
Bird
Hummingbird
Pyramid
The Great Pyramid of Giza
Height of shortest NBA Player
1.6m - Muggsy Bogues
Land animal
African bush elephant
The Andes
Human bone
The stapes
Building
Burj Khalifa
Mammal
Hog-nosed bat/Etruscan shrew
Dog breed
Mastiff
Railway
Trans-Siberian
Country
Vatican City
Giraffe
Which state is the shortest mountain in Australia in?
Victoria - Mount Wycheproof
Naturally occurring element
Uranium
What US state is home to the world's longest cave?
Kentucky - Mammoth Cave
Which country is home to the world's smallest sea?
Turkey - Sea of Marmara
Height of tallest person in history
2.72m
Height of shortest person in history
54.6cm
What is the heaviest object on Earth used to do?
Launch rockets (a piece of the launch pad at the Kennedy Space Centre)