In which direction should the missing arrow point?

What runs around the whole yard without moving?

I am the beginning of everything, the end of everywhere. I'm the beginning of eternity, the end of time and space. What am I?

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?

In two decks of cards, what is the least amount of cards you must take to be *guaranteed* at least one four-of-a-kind?

You knock a Table over in the library, and suddenly 20 eyes are looking at you.

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

There are six people in a family namely M, N, O, P, Q and R.

R and O are brother and sister.

N is the brother of Q's husband.
P is the father of M and grandfather of R.

How many male members are in the family?

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

Analyze and find the missing item in the sequence:
16, 06, 68, 88, __, 98