11 What is the lightest animal on earth?

Paedophryne amanuensis (a frog)

12 What is the fastest sea animal?

Sailfish

13 What is the smallest heaviest thing on earth?

Osmium

14 What weighs more an elephant or a giraffe?

Elephant

15 Is a lion stronger than a tiger?

No

16 What’s the most dangerous animal on earth?

Tsetse Fly

17 Would a tiger beat a lion?

Yes

18 What is the fastest animal in the world?

Cheetah

19 Is a blue whale bigger than dinosaurs?

So far Yes but now a new species of dinosaur has been discovered that is considered bigger than Blue Whale

20 What was the largest flying animal ever?

Quetzalcoatlus