What is in seasons, seconds, centuries and minutes but not in decades, years or days?

Which is the smallest number that you can write using all the vowels exactly once?

There is a square of a particular number which when doubled, becomes 7 more than its quarter.

Can you find the number?

John killed hundreds of people mercilessly and yet the police were not able to put her behind the bars. Why?

A certain street contains 100 buildings. They are numbered from 1 to 100. How many 9's are used in these numbers?

While house hunting in London, I came across a very good leasehold property Discussing the lease the landlady told me:

'The property was originally on a 99 years lease and two-thirds of the time passed is equal to four-fifths of the time to come. Now work it out for yourself and see how many years are to go!

There are three boxes on a table. One of the box contains Gold and the other two are empty. A printed message contains in each box. One of the message is true and the other two are lies.

The first box says "The Gold is not here".

The Second box says "The Gold is not here".

The Third box says "The Gold is in the Second box".

Which box has the Gold?

By using 'because' continuously three times, can you make an English statement ?

What animal walks on four legs in the morning, two legs during the day, and three legs in the evening?

Oedipus, the king of Thebes, figured out the answer to the riddle:

John was drowned by he was not wet. How?