What is always in front of you but can’t be seen?

Mother's Name is Mrs. SIXTY TWO
Son's Name is FIFTY TWO
Daughter's Name is FORTY TWO
What is Name of Father?

That attorney is my brother, testified the accountant.

But the attorney testified he didn't have a brother.

Who is lying?

Railroad Crossing, look out for the cars. Can you spell that, without any R's ?

A man has a barrel filled with oil that weighs 100 pounds, and then he puts something into it. Now the barrel weighs less than 100 pounds. What did he put in the barrel?

What has one letter and starts with an E?

If you drop a 15 kg iron bar and a 5 kg bag of cotton from a height of 50 meters which will reach the ground first?

John replied, when asked how old he was. In 2 years he will be twice as old as he was five years ago.' How old is he ?

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

I know a nine-letter word having only one vowel.
Do you ?