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

Three doctors said that Bill was their brother. Bill says he has no brothers. How many brothers does Bill actually have?

What can you hold in your right hand, but never in your left hand?

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).

Can you solve the maths in the below-given picture equation?

At the local model boat club, four friends were talking about their boats.

There were a total of eight boats, two in each colour, red, green, blue and yellow. Each friend owned two boats. No friend had two boats of the same colour.

Alan didn't have a yellow boat. Brian didn't have a red boat but did have a green one. One of the friends had a yellow boat and a blue boat and another friend had a green boat and a blue boat. Charles had a yellow boat. Darren had a blue boat, but didn't have a green one.

Can you work out which friend had which coloured boats?

Decode the movie name from the below picture?

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

John: "Hi Teacher, What is your favourite movie ?".
Chemistry Teacher: "Indium Cerium Platinum Iodine Oxygen Nitrogen".
Ten seconds later... John replied I got it.

Do you?

Why do we preferably have round manhole covers and not square ones?