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?

Cristina leaves home and then she makes exactly 3 left turns and returns home where she found 2 girls wearing the mask.

Who are these two masked girls?

What is the riddle which can be asked all day with a different correct answer each time.

Can you find the missing number in the third row?
35 20 14
27 12 18
5 2 ?

How many pluses should we put between the digits of 987654321 to get a total of 99, and where?

What word begins and ends with an E, but has only one letter?

Can you count the number of squares in the given picture?

I’m light as a feather, yet the strongest person can’t hold me for five minutes. What am I?

Use only one mathematical symbol and all numbers (0-9) to get a sum of 99

At a party, there are five people and a whole round cake lying at the centre of the table. Only four people will make a cut and take their piece and the last one will get the remaining piece on the table. How can they make sure that everyone gets a 1/5th of the piece?