If you say my name, I will no longer exist. What am I?

They are the five precious gems of an everyday sort and all can be found on a Tennis Court. Who are they?

You are in a land where thirty men and two women were dressed in classic black and white dresses.
They begin to fight as soon as any of them move.

Where are you?

The day before yesterday I was 25 and the next year I will be 28. This is true only one day in a year. What day is my birthday?

First, think of the colour of clouds. Next think the colour of snow. Last, think of the colour of the moon. Now, what do cows drink?

A girl is twice as old as her brother and half as old as her father. In 50 years, her brother will be half as old as his father. How old is the daughter now?

Sherlock Holmes was challenged to make a pre-drawn line smaller without erasing it. He did it in fractions of seconds. How?

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.

What number do you get when you multiply all of the numbers on a telephone's number pad?

Remove two matchsticks to make the below equation correct.