I shave every day, but my beard stays the same. What am I?

A father's child, a mother's child, yet no one's son.

Who am I?

What have one eye but still cannot see?

Move four matchsticks to the below square to form three squares?

Today, I celebrated my 32nd birthday but I was born in 1972.
How is this possible?

A man plots the murder of his wife. His plan is full proof. Nobody saw them leaving their house. He stabbed her with a knife while driving. She died on the spot. He threw her body in a valley. He threw the knife carefully wiping his finger prints on a random garbage bin. Then he went back to his home and no one was watching him this time as well.

After an hour, he was called by the local police department who informed him that his wife was murdered. They asked him to reach the scene of crime immediately. But as soon as he arrived at the crime scene, he was arrested by them.

How did the police know that he himself is the murderer?

Decode below three cipher riddles:

26 L of the A
7 D of the W
1000 Y in a M

1. What does:
TIM JOB
represent?

2. What does:
MO_ _
represent?

Which is the smallest number that you can write using all the vowels exactly once?

When is the top of a mountain similar to a savings account?