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?

There are five vowels (a, e, i, o, u) in the English language.
Can you tell us a word that contains all these vowels?

What came first, the chicken or the egg?

How many cubic feet of dirt are in a hole of one foot deep, three feet long, and two feet wide?

When I get multiplied by any number, the sum of the figures in the product is always me. What am I?

How many pluses should we put between the digits of 987654321 to get a total of 99, and where?

How many triangles are there on the puzzle below?

Who can jump higher than a Mountain?

The king of Octopuses has servants who have six, seven or eight legs. The distinguishing characteristics of the servants is that the one with seven legs always lie but the one with either six or eight legs speak the truth always.

One day, four servants meet and converse:

The black one says, 'We have 28 legs altogether.'

The green one says, 'We have 27 legs altogether.'

The yellow one says, 'We have 26 legs altogether.'

The red one says, 'We have 25 legs altogether.'


Can you identify the colour of the servant who is speaking the truth?

I have cities, but no houses. I have mountains, but no trees. I have water, but no fish. What am I?