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

Rectify the following equality 101 - 102 = 1 by moving just one digit.

There were three women in all the swimming costumes!
One was happy and the other two were sad!
The happy one was crying and the sad ones were smiling.
Why was this?

People make me, save me, change me, raise me. What am I?

If you had a pizza with crust thickness 'a' and radius 'z', what's the volume of the pizza?

An evil man kidnapped someone and made them take one of two pills. One was harmless, but the other was poisonous. Whichever pill the victim took, the kidnapper took the other one. The victim took their pill with water and died. The kidnapper survived. How did the kidnapper get the harmless pill?

I am eight letters long - "12345678"
My 1234 is an atmospheric condition.
My 34567 supports a plant.
My 4567 is too appropriate.
My 45 is a friendly thank-you.
My 678 is a man's name.

What word am I?

Take 9 from 6, 10 from 9, 50 from 40, and leave 6.

How Come ??

I know a ten-letter word in the English language which can be typed using only the top rows of the computer keyboard.

All of the flowers I have are orchids except two. All of the flowers I have are hibiscuses except two. All of the flowers I have are roses except two.

Can you tell me how many flowers I have?