Can you convert the number zero(0) into a positive number using just one mathematical operator ?

I know a nine-letter word having only one vowel.
Do you ?

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

I have no doors but I have keys, I have no rooms but I have space, you can enter but you can’t leave! What am I?

There was a greenhouse.
Inside the greenhouse, there is a white house.
Inside the white house, there is a red house.
Inside the red house, there are lots of babies.

What is It?

Can you think of a smallest +ve number such that if we shuffle the digits of the number, the new number becomes double the original number?

What month of the year has 28 days?

Can you find the hidden mobile that is lost in the rug?

John said, "If yesterday was tomorrow, today would be Friday."

When did John make this statement?

Decode the movie name from the below picture?