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

What time is it when an elephant sits on a fence?

A number can be multiplied by multiple of nine
i.e 9 18 27 36 45 ...

and the resulting number consist of only one digit.

Can you identify the number ?

What number divided by 4 is the same as that number minus 4?

Three logicians went to bar for having a drink. The bar person asks the logicians "Do they all want to have the drink?". The first logician replied, " I don't know". The second logician replied, " I don't know". What is the reply of the last logician?

Rahul decided to meet Simran so he boards a local train from Bombay station. Just after the station, there is a 1km long tunnel. The train starts and is now accelerating. Rahul is a claustrophobic guy, so what is the best position for him to sit?

Can you find the next number in the below sequence
3 , 7 , 10 , 11 , 12 , 17 ?

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

There are three cows, two dogs, and one cat: How many legs do you have?

Why is it against the law for a man living in Delhi to be buried in Mumbai?