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

What has to be broken before you can use it?

I get hot but I never sweat,
I cook food but I am not a chef,
I have a door but you can't enter me,
I have a light but I am not a lamp.
Who am I?

I am the fastest animal but cannot climb the tree. What am I?

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?

Lifeless eyes on my smiling face and watch your child's sleeping place. In their dreams they hold me tight. What am I?

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

How many letters are in the alphabet?

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"

Can you solve this picture maths equation?