A bridge is about to collapse. There are four people P, Q, R and S on one of the sides. Before the bridge collapses, they want to cross it. Now since the bridge is too weak, it can only stand the weight of two people at a time. Also, it is night time and nothing is visible. They have just one torch with them.

Now P takes one minute to cross the bridge, Q takes two minutes to cross, R takes five minutes to cross and S takes ten minutes to cross.

The bridge will collapse in seventeen minutes. How will they be able to cross the bridge before it collapses?

When I got four, I have it none.
When I got two, I have it some.
When I got none, I have it all.

What is it?

I know a ten-letter word in the English language which can be typed using only the top rows of the computer keyboard.

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?

Two friends were betting. One said to the other, "The coin will be flipped twenty times and each time the coin lands on the head, I will give you $2 and each time it lands on the tale, you will give me $3." After flipping the coin twenty times not a single penny was exchanged among them.

How many times did the coin land on heads?

There is something which you can be arrested for attempting but not for successfully completing.

Who always enjoys poor health?

A man in a car saw a Golden Door, Silver Door and a Bronze Door. What door did he open first?

What am I?

Why is 6 afraid of 7?