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

What number do you get when you multiply all of the numbers on a telephone's number pad?

People put me on the table and cut me but do not eat me. What am I?

A man was found murdered on Sunday morning. His wife immediately called the police. The police questioned the wife and staff and got these alibis: The Wife said she was sleeping. The Cook was cooking breakfast. The Gardener was picking vegetables. The Maid was getting the mail. The Butler was cleaning the closet. The police instantly arrested the murderer. Who did it and how did they know?

A person was found dead on a big green land with no trees or buildings around. When the police arrived, they found a piece of rock lying next to him and the man was wearing clothes comprising of red, blue and yellow colours.

Can you tell who the person is and what was the cause of death?

How many letters are in the alphabet?

The Little ant seems to be always confused. Do you know why?

What does this mean?

CCCCCCC

There are 3 apples in the basket and you take away 2. How many apples do you have now?

A large container is kept in open under the rain. Every passing hour, the water collected inside the container becomes double what it was.

In ten hours, the container is filled completely. Can you calculate how long would it have taken to be filled in half?