Can you convert the number zero(0) into a positive number using just one mathematical operator ?

What do the following words have in common?

Assess
Banana
Dresser
Grammar
Potato
Revive
Uneven
Voodoo

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

A woman lives in a skyscraper thirty-six floors high and is served by several elevators which stop at each floor going up and down. Each morning she leaves her apartment and goes to one of the elevators. Whichever one she takes is three times more likely to be going up than down. Why?

What is the next number in this series?

4,12,84,3612....

What kind of band never plays music?

I am sure no one can have two things for dinner. what are they?

Your mother’s brother’s only brother-in-law is asleep on your couch. Who is asleep on your couch?

A Club organizes a Running Race, and John, Jacob, Minda, and Tony participated.

The results are as follows

John beats Jacob
Minda beats Toni
Toni beats John

Who came first in the race?

Twice ten are six of us,

Six are but three of us,

Nine are but four of us;

What can we possibly be?

Would you know more of us?

Twelve are but six of us,

Five are but four, do you see?

What are we?