What is the longest word in the dictionary?

It's a test that will check your IQ.

Suppose you have one 11 minute hourglass and one 13 minute hourglass.

Can you measure exactly fifteen minutes using them ?

Why is 6 afraid of 7?

What does does this rebus picture means ?

What Adam and Eve do not have but the rest of the people have?

How many people must be gathered together in a room, before you can be certain that there is a greater than 50/50 chance that at least two of them have the same birthday?

Do You See It?

When my father was 31 I was 8. Now he is twice as old as me. How old am I?

You are driving down the road in your car on a wild, stormy night, when you pass by a bus stop and you see three people waiting for the bus

An old lady looks as if she is about to die.
An old friend who once saved your life.
The perfect partner you have been dreaming about.
Knowing that there can only be one passenger in your car, whom would you choose?

I have no doors but I have keys, I have no rooms but I have space, you can enter but you can’t leave! What am I?