Quickly Solve this riddle

7 - 4 + 3 * 0 + 1 = ?

How can you leave a room with two legs and return with six legs?

How can you make a TV, a bed, a dog, and a car liquid?

Yesterday I fell from 30 feet high ladder but I don't get hurt. Why?

John went to a parrot shop in Mexico, and the parrot owner told him that his parrot is so unique that he repeats everything he hears. John got excited and immediately bought the parrot. John went home and spoke many words, but the parrot does not repeat anything.
He went again to the parrot shop and complaint to the shopkeeper, but the shopkeeper never lied. Explain?

A man and a dog were going down the street. The man rode, yet walked. What was the dog’s name?

Detective Rockford was jogging near the beach at 4:30 am.
He hears a sound near the shack "No Michael, Please Do not shoot me".
Next instance he heard the sound of gunfire. Rockford rushes to the shack where he finds women lying dead and a gun in close proximity of three "Doctore Lawyer and a Teacher".

Rockford immediately knew that the Lawyer has committed the crime. How?

There are three Athletes (John, Tarun and Harish) and their individual Coaches (Jacob, Meenaxi and Priyanka) standing on the shore.
No Coach trusts their Athlete to be near any other Coach unless they are also with them.
There is a boat that can hold a maximum of two persons.
How can the six people get across the river?

How many times do a clock's hands overlap in a day ?

If 5 cats catch 5 mice in 5 minutes, how long will it take one cat to catch a mouse?