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?

If two's company, and three's a crowd, then whats four and five ?

A woman lives in a skyscraper thirty-six floors high and is served by several elevators which stop at each floor going up and down. Each morning she leaves her apartment and goes to one of the elevators. Whichever one she takes is three times more likely to be going up than down. Why?

You need to remove two matchsticks to make the below equation true. Can you do it ?

You are provided with a grid (as shown in the picture). Can you fill the squares with numbers 1-8 in a manner that none of the two consecutive numbers are placed next to each other in any direction (vertically, horizontally or diagonally?)

I have a big mouth and I am also quite loud! I am NOT a gossip but I do get involved with everyone's dirty business.

What has hands, but can’t clap?

Can you count the number of squares in the figure below?

What will be the best approach to finding all the prime numbers less than 75 that leave an odd reminder when we divide them with 5?

If one and a half boys, eat one and a half burgers in one and a half hours.

How many burgers can 9 boys eat in 3 hours?