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

What is the Surname of Barbie Doll?

Which point will the car reach to go out?

In the addition below, all digits have been replaced by letters. Equal letters represent equal digits and different letters represent different digits.
ABCABA
BBDCAA
ABEABB
ABDBAA
------- +
AAFGBDH
What does the complete addition look like in digits?

Can you move 2 matchsticks to form four equal sized squares.

Can you find a five letter word that is left with only two letters if one is removed?

Find three numbers such that When we multiply three numbers, we will get the prime numbers. The difference between the second and the first number is equal to the third and second.

Considering the below equation:

V + II - VI = 10
IV - X + VIII = 20
IV - VII + VI = 30

Then, I + II + III = ?

The measurement of time, That can't be found on a clock, But can be looked upon on a map.

Who is He ?

A Doctor always sneezes before the rain. Doctor sneezes, Will it rain?