How big is the sun?
How big is the moon?
How big is Jupiter?
How long would it take to fly to Neptune?
How fast is light?
What is the biggest country?
How high is Mount Everest? How much water is there?
How big is the largest lake?
How tall was the biggest wave ever surfed?
How big was the largest hailstone?
How heavy are your bones?
How much air does a person breathe?
What has the biggest eyes?
What has the biggest teeth?
What's the biggest living thing?
What is the biggest animal?
What is the biggest land animal?
What was the biggest land predator?
How big was the biggest shark?
What's the biggest insect?
How big can spiders grow?
What had the longest wings ever?
What's the smallest bird
Which bird laid the biggest egg?
How far can a bird fly?
Which animal jumps the farthest?
How strong is an ant?
How big is a supertanker?
How small is the tiniest computer?
How heavy os the Great Pyramid?
How tall is the tallest building?
How big is the biggest building?
How much gold is there?