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?

A girl was sitting in her hotel room when she heard a knock on the door. She opened the door and found that a man was standing outside.
The man said, "Oh! I am really sorry, I thought this was my room."
He then walked through the corridor to the elevator. The girl did not know the man. She closed her door and called security asking them to apprehend the man.
What made her suspicious of that man? He might have been genuinely mistaken.

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?

It's a protector.
It sits on a bridge.
One individual can see directly through it, while others wonder what it hides.

What is it?

There are nine letters in the below-given diagram. You have to form a nine-letter word using these letters.

What does this rebus means ?

PROG WORKRESS

Find out a multi-digit number that if multiplied by the number 9 or any of its multiplications products (i.e. 18, 27, 36, 45,..) will result in the multiplication factor repeated (n) number of times.

Before Mount Everest was discovered, what was the highest mountain in the world?

In a football game, Christina defeated Teresa by 2 - 0 but no man from either side scored. How can this be possible?

Using eight eights and addition only, can you make 1000?