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?

Can you find out the number that should replace the question mark with a valid reason?

Can you place six matchsticks in a manner that each of the matchsticks is in touch with the other five matchsticks?

Can you tell a 3D object that has just two surfaces?

I have an eye but still cannot see.

Who am I?

A Club organizes a Running Race, and John, Jacob, Minda, and Tony participated.

The results are as follows

John beats Jacob
Minda beats Toni
Toni beats John

Who came first in the race?

What is in seasons, seconds, centuries and minutes but not in decades, years or days?

Spelt forwards I’m what you do every day, spelled backwards I’m something you hate. What am I?

If an earthquake is 1 point higher on the Richter Scale than another earthquake which is actually 10 times stronger, how much stronger would an earthquake be if it was just half a point higher on the Richter scale?

Look at the picture and find out which square is not linked with any of the other squares.