By removing one matchstick and adding one matchstick, can you convert the word "ZOO" to an animal name?

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?

How many sides does a circle have?

Below rebus represent famous DiCaprio movie. Can you name it?

What runs around the whole yard without moving?

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 time is it when an elephant sits on a fence?

What number does the below three word/phrase identify and why?
1. Deck
2. Year
3. Singing in the Rain

You have four chains. Each chain has three links in it. Although it is difficult to cut the links, you wish to make a single loop with all 12 links. What is the fewest number of cuts you must make to accomplish this task?

How can one talk without saying a single word?