Be active and find the killer in the picture Riddle below.

Take away my first letter, then take away my second letter. Then take away the rest of my letters, yet I remain the same. What am I?

A mother is 21 years older than her child. In exactly 6 years from now, the mother will be exactly 5 times as old as the child.
Where's the father?

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?

You see a boat filled with people, yet there isn’t a single person on board. How is that possible?

What Does this text mean:

important=important

What goes up but never comes down?

Can anyone tell me a word in the English dictionary which has a silent 'z'?

Take number 1000 and then add 20 to it.
Now add 1000 one more time.
Now add 30.
Now add 1000 one more time.
Now add 40.
Now add 1000 one more time.
Now add 10.

What is the total?

It belongs to you, but other people use it more than you do. What is it?