I have branches, but no fruit, trunk or leaves. What am I?

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

In a university, a professor gave a set of three problems to the three brilliant students of his class. See the image for the questions.

What does this rebus means ?

What building has the most stories?

A man dies of old age on his 25 birthday. How is this possible?

Here is a Swiss Cross. You have to make two straight cuts in the figure so that it is divided into four congruent pieces. Also, you should be able to join these pieces into a square then. Can you accept this challenge?

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?

Where do fish keep their money?

You and your two friends are working in a multinational company. How can you three find out the average salary of you all without disclosing your own salary to the other two?