Can you place three balls such that the equation shown in the picture holds true?

By using 'because' continuously three times, can you make an English statement ?

A train full of passengers goes through a tunnel. When the train comes out from the other end, there is no single person on the train.

How did it happen?

Name a key which is hardest to turn.

You have three orange, two pink and five purple balls in the drawer beside your bed. There is no electricity and the room is entirely dark. How many balls must you take out to ensure at least one ball of each colour at least?

I look at you, you look at me I raise my right, you raise your left. What am I?

A man who was outside in the rain without an umbrella or hat didn’t get a single hair on his head wet. Why?

f you were running a race, and you passed the person in 2nd place, what place would you be in now?

Outside a tattoo artist's shop, there was a signboard which read 'I make tattoos on only them who do not tattoo themselves'.

Reading it what do you think, does the tattoo artist tattoo himself?

When Jack was six years old he hammered a nail into his favourite tree to mark his height. Ten years later at age sixteen, Jack returned to see how much higher the nail was. If the tree grew by five centimetres each year, how much higher would the nail be?