A man in a car saw a Golden Door, Silver Door and a Bronze Door. What door did he open first?

Can you decipher the two rows to find the hidden word?

What happened when the wheel was invented?

I have a hole in my back and legs I lack.
I live where I can’t breathe and I eat without teeth.
What am I?

Where do fish keep their money?

The product of three consecutive numbers is 7980.
Then the sum of these consecutive numbers would be?

I am a ten letters word
The first four letters have the power to rule,
Next, four-letter can be eaten.
The next three-letter represents a lady.
I can fly as well

what am I looking for?

I am taken from a mine and shut up in a wooden case, from which I am never released, and yet I am used by almost every person. What am I?

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?

In an interview, a boy was asked an unusual question 'How two persons sitting with a table in between them can't see each other?' He was unable to reply. Can you?