A mile-long train is moving at sixty miles an hour when it reaches a mile-long tunnel. How long does it take the entire train to pass through the tunnel?

2 ladies and 2 girls need to cross a river in a boat big enough for 1 LADY or 2 girls. How do they do it?

What's the next in the series?

H, Be, F, S, Mn, Kr, In, Gd, Tl, ?

You can see it everyday, But cannot touch it at will. What is it?

A man was found murdered on Sunday morning. His wife immediately called the police. The police questioned the wife and staff and got these alibis: The Wife said she was sleeping. The Cook was cooking breakfast. The Gardener was picking vegetables. The Maid was getting the mail. The Butler was cleaning the closet. The police instantly arrested the murderer. Who did it and how did they know?

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?

I know a country, If you remove the last alphabet of its name, it will become a part of your body. Do you name it?

Give it food and it will live; give it water and it will die.

The chance of Mr John winning the lottery is 10%. All participants lined up and Mr John is 4th in the row. The first three participants lose the lottery.

What is the chance of Mr John now?

There was a strange boy who was born before his father. How can this be possible?