The peacock is a bird that does not lay eggs. How do they get baby peacocks?

In 1990, a person is 15 years old. In 1995, that same person is 10 years old. How can this be?

A number can be multiplied by multiple of nine
i.e 9 18 27 36 45 ...

and the resulting number consist of only one digit.

Can you identify the number ?

I am white when I am dirty, and black when I am clean. What am I?

My friends called me Iron59 because my parents are a chemist and a mathematician. What is my real name?

One absent-minded ancient philosopher forgot to wind up his only clock in the house. He had no radio, TV, telephone, internet, or any other means for telling time. So he travelled on foot to his friend's place a few miles down the straight desert road. He stayed at his friend's house for the night and when he came back home, he knew how to set his clock. How did he know?

How can you leave a room with two legs and return with six legs?

What does the following BrainBat signifies?

ABCDEFGHIJKLMNOPQRSTUVWYZ

QQQQQQQQQQQQQQQQQQQQQQQQQ.

Do You See It?

There are nine dots in the picture that has been attached with this question. Can you join all the dots by drawing four straight lines without picking up your pen?