A chess tournament is taking place on knock-out terms (the one who loses the match is out of the game).
(a) If 10 matches are played in total, how many players participated?
(b) If 20 players took part in the tournament, how many matches were played?

81 x 9 = 801. What must you do to make the this equation true?

A guy in his thirties is found dead in a forest. The shocking thing about the body is that he is wearing his swimming trunks snorkel and a facemask.

For your information, the nearest lake is some 10 miles away and the sea is hundreds of miles away.

How did he die then?

Why do Chinese men eat more rice than Japanese men do ?

If nine thousand, nine hundred nine dollars is written as $9,909,
how should twelve thousand, twelve hundred twelve dollars be written?

What is full of holes but still holds water?

A newspaper is supposed to have 60 pages.Pages 14 and 21 are missing from the newspaper.

Can you tell me , Which other pages won't be there as well ?

Can you make numbers like 24, using numbers 3,3,7 & 7 with any arithmetic operator?

Look at the picture and find out which square is not linked with any of the other squares.

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