What will you call your mother's brother's brother-in-law?

In which direction should the missing arrow point?

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?

Replace the question mark with the correct number.

Can you count the number of triangles in the given figure?

Today, I celebrated my 32nd birthday but I was born in 1972.
How is this possible?

Find three whole, positive numbers that have the same answer when multiplied together as when added together.

Replace the question mark with the correct number in the below-given picture?

John was driving a bus and got stuck when passing through an underpass. Then came Jacob with a needle and got the bus out of the underpass.

What did the boy do?

If you remove one from eleven, it becomes ten. If you remove one from nine, it becomes ten.

How is this possible?