John replied, when asked how old he was. In 2 years he will be twice as old as he was five years ago.' How old is he ?

If you toss a coin 10 times and it lands heads up every time, what are the chances it will land heads up if you toss it again?

An American nightclub called 'The Coconut Grove' had a terrible fire in which over 400 people died. A simple design flaw in the building led to a high death toll. Subsequently, regulations were changed to ensure that all public buildings throughout the country eliminated this one detail, which proved deadly. What was it?

Can you solve the below tricky visual equation?

A 3 digit number is such that it's unit digit is equal to the product of the other two digits which are prime. Also, the difference between it's reverse and itself is 396.

What is the sum of the three digits?

Cristina was born in 1888. She just had her 30th birthday today how did that happen?

A woman lives in a Tall building thirty-six floors high and 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?

Three ants are going up a hill, one behind the other. The last ant then says to the other ants, 'There is an ant behind me!'' How come?

What goes up but never comes down?

There are forty elephants and they have forty-fore heads. How can this be possible?