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?

What kind of band never plays music?

What can run but never walks, has a mouth but never talks, has a head but never weeps, has a bed but never sleeps?

There is a family that live in a round house. The two parents go out for a movie and leave a babysitter to watch their son. They come back and the kid was not there. Some one kidnapped him. The maid said she was cleaning in a corner. The cook said he was making pizza. The babysitter said she was getting a board game. Who kidnapped him.

Can you identify if it's a murder or a suicide ?

Why 1729 is a magic number? Answer Logically.

What demands an answer, but asks no questions

O_er_t_o_

Complete the missing letters of the given word.

What is the next shape from answers A, B, C, and D figure?

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