If two's company, and three's a crowd, then whats four and five ?

Can you solve the below tricky visual equation?

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?

The ages of a father and son add up to 66.
The father's age is the son's age reversed.
How old could they be?
(3 possible solutions).

With the help clues provided in the image, can you find the 5 digit key?

One is to three as three is to five and five is to four and four is the magic number.
What is the pattern?

Can you Find and name the hidden bird in the picture below ?

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

A man walked into a pub and went straight towards the Barman. He asked for a dirty martini from the Barman. The Barman thought something and then pulled out a pistol from his drawer and aimed it directly at the man. Why did he do that?

What does this below rebus puzzle mean?