What is so fragile that saying its name breaks it?

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

An office is divided into 8 cubicles. How many of the cubicles are painted if only 1/8 of the cubicles are painted?

When 99 is considered higher than 100?

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?

What is the largest number you can write with just 3 digits?

Spelt forwards I’m what you do every day, spelled backwards I’m something you hate. What am I?

If eleven plus two equals one, what does nine plus five equal?

The ages of a father and son add up to 66.
The father's age is the son's age reversed.
How old could they be?
(3 possible solutions).

When my father was 31 I was 8. Now he is twice as old as me. How old am I?