How many bricks does it take to complete a building that is 15 feet wide, 30 feet deep, and 12 feet tall made of brick?

In a mathematical quiz, you are asked the following question:

Use three 9s in a mathematical expression without dividing or multiplying to form the number one.

Can you answer the question?

Why is the Hole below a Lock?

What is the next number in this series?

4,12,84,3612....

I know a nine-letter word having only one vowel.
Do you ?

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"

Look at the below sequence of letters and tell us what the next letter should be:

O T T F F S S ?

Can you count the number of triangles in the picture below?

Can you quickly find which two matchstick figures are identical?

John left on a horse on Thursday , was gone for two days, and came back on Thursday after completing his work. How did that happen?