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?

A girl has as many brothers as sisters, but each brother has only half as many brothers as sisters. How many brothers and sisters are there in the family?

John enters a small room. The Door Closes.
When the door opens, John is in a larger room.

Explain?

How will you measure 15 minutes using two hourglasses of 7 minutes and 11 minutes respectively?

I make a loud sound when I’m changing. When I do change, I get bigger but weigh less. What am I?

I am an eight letter word and I am a computer terminology.
The second, third and fourth letters make an animal.
The fourth, fifth, sixth, seventh and eighth letters make a weapon.
The first, second, third and fourth letters can be taken as an outcome of any exam.
The fifth, sixth, seventh and eighth letter combine to form a high end typing software.

Can you tell who am I ?

I am the first thing you need while camping.
I am always with the person named Marcos Valencia and Carrick.
But Pogba Zlatan and Rooney think I am wasteful and do not need me.
I am the second to the last thing to add when you are making a patch.

What am I?

why number 8549176320 is one of a kind?

Double it and multiply it by 4. Then divide it by 8 and you’ll have it once more. What number is it?

As you can see that fifteen matches have been used to form an arrangement. What you have to do is remove any six of them to make them ten.