Count the squares in the matchstick puzzle below?

A father's child, a mother's child, yet no one's son.

Who am I?

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

Which is heavier: a ton of bricks or a ton of feathers?

A train leaves from point A for point B at 80 mph. After half an hour, another train leaves from point B for point A at 60 mph.

Which of the trains will be farther from point A when they meet ?

John was drowned by he was not wet. How?

The picture shows the dice results in each couple of throws. If they are actually following a pattern, can you find out the missing one?

Whats the next number in the below number sequence pattern.

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

The host of a game show, offers the guest a choice of three doors. Behind one is a expensive car, but behind the other two are goats.
After you have chosen one door, he reveals one of the other two doors behind which is a goat (he wouldn't reveal a car).

Now he gives you the chance to switch to the other unrevealed door or stay at your initial choice. You will then get what is behind that door.

You cannot hear the goats from behind the doors, or in any way know which door has the prize.

Should you stay, or switch, or doesn't it matter?