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?

What can run but never walks, has a mouth but never talks, has a head but never weeps, has a bed but never sleeps?

Find the next number in the sequence

5 12 24 36 ?

John was piloting a plane behind a car but was never able to overtake it. Why?

I am lying and I always lie. Tell me whether I am lying or telling the truth.

What three numbers, none of which is zero, give the same result whether they’re added or multiplied?

You know three triplets: Frank John and Wayne (need to return your money). Frank always tells the truth while John and Wayne always lie. You meet one of them on the road and can ask him a three-word question.
Which question, will you ask?

Why did Buffon take the goal with him after every Juventus match?

There is a wide field of corn. A goose finds its way into the field and starts running. Can you find out till which point the goose can run into the field?

Our product and our sum always give the same answer. Who are we?