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?

A man in a car saw a Golden Door, Silver Door and a Bronze Door. What door did he open first?

A mother is 21 years older than her child. In exactly 6 years from now, the mother will be exactly 5 times as old as the child.
Where's the father?

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

What begins with T, ends with T, and has T in it?

When I got four, I have it none.
When I got two, I have it some.
When I got none, I have it all.

What is it?

You visit a home for specially-abled children on the occasion of Christmas where you meet with 50 children. You have a box of chocolates containing 50 chocolates exactly.

What if you were asked to one chocolate to each child in a manner that one chocolate still remains in the box? Is it possible?

What can run but never walk, have a mouth that never speaks, have a head that never weeps, and have a bed but never sleeps?

What is harder to catch the faster you run?

A newspaper is supposed to have 60 pages, but pages 24 and 41 are missing.
Which other pages won't be there?