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

How many sides does a circle have?

A new Engineering building containing 100 offices had just been completed. John was hired to paint the numbers 1 to 100 on the doors. How many times will John have to paint the number nine (9)?

If six children and two dogs were under an umbrella, how come none of them got wet?

What has one letter and starts with an E?

How many times can you subtract the number 5 from 25?

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?

It is an eleven letter word.
The first, second, third and fourth letters form a banquet's name.
The fifth, sixth and seventh letters form a car's name.
The eighth, ninth, tenth and eleventh letters form a mode of transport.

Can you identify what word it is?

Do You See It?

I am a normal creature, but I have five hands. I can even have more but even then I will be considered normal.

Who am I?