Can you solve this picture maths equation?

What is the Surname of Barbie Doll?

The first two letters signify a male, the first three letters signify a female, the first four letters signify a great, while the entire world signifies a great woman. What is the word?

Count The number of F's in the paragraph below:

"FINISHED FILES ARE THE RESULT OF YEARS OF SCIENTIFIC STUDY COMBINED WITH THE EXPERIENCE OF YEARS"

A certain street contains 100 buildings. They are numbered from 1 to 100. How many 9's are used in these numbers?

What have one eye but still cannot see?

You Throw The Outside, Cook The Inside
Eat The Outside, Throw The Inside.

What Is It?

Before Mount Everest was discovered, what was the highest mountain in the world?

One day, John and his friends were playing around. Jacob hit something with a Pin and it popped. John's dad came into the room that very moment, but he wasn't mad. In fact, he was smiling. What did Jacob hit?

I have four wings but can't fly.
I express no emotions.
I am found on the exact spot every time you look.
I keep toiling away with a little sound.

Do you know what am I?