Can you write down eight eights so that they add up to one thousand?

Readers with excellent focus can find three differences between the camping scene pictures in 16 seconds. Can you? Test your eye power now!

What is the Surname of Barbie Doll?

They came out at night, without being called.
They lost at day, without being stolen.
Who are they?

I am a type of vehicle that has two wheels and is powered by humans. What am I?
Hint 1: You can ride me for exercise.
Hint 2: I am environment-friendly.

I can sizzle like bacon,
I am made with an egg,
I have plenty of backbone, but lack a good leg,
I peel layers like onions, but still remain whole,
I can be long, like a flagpole, yet fit in a hole.

I’m orange, I wear a green hat and I sound like a parrot. What am I?

How many times can you subtract the number two from the number fifty?

I have an eye but still cannot see.

Who am I?

If eleven plus two equals one, what does nine plus five equal?