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?

The captain of a ship was telling this interesting story: "We travelled the sea far and wide. At one time, two of my sailors were standing on opposite sides of the ship. One was looking west and the other one east. And at the same time, they could see each other clearly." How can that be possible?

Solve the equation by replacing the alphabet with numbers.

MOM + MOM + NO = BOOK=

Which digit occurred maximum times between the number 1 and 1000?

How many letters are in the alphabet?

A man was just doing his job when his suit was torn. Why did he die three minutes later?

If "P" means "-", "Q" means "/", "R" means "+", and "S" means "*" then find the value of the following:

21 Q 7 R 9 S 10 P 13

A little girl goes to the store and buys one dozen eggs. As she is going home, all but three break. How many eggs are left unbroken?

Why is 6 afraid of 7?

Count the squares in the matchstick puzzle below?