What is the largest species of shark?

Which tree is known as the "world's tallest tree species"?

What is the only mammal capable of sustained flight?

Which animal has the longest migration route?

What is the fastest land animal?

Which flower is the largest in the world?

What percentage of Earth's surface is covered by water?

Which bird has the largest wingspan?

What is the deepest part of the ocean?

Which gas makes up most of Earth's atmosphere?

How many hearts does an octopus have?

Which planet has the most moons?

What is the largest organ in the human body?

Which animal can live the longest?

What is the rarest blood type in humans?

Which element is the most abundant in the universe?

What causes the blue color of the sky?

Which insect is the strongest relative to its size?

What is the only continent without reptiles or snakes?

Which plant grows the fastest?