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

Solve the counting riddle by identifying the number of triangles in the given picture.

After a heavy Thanksgiving meal, the night watchman went to work. In the morning, he told his boss he had dreamed that a saboteur planted a bomb in the factory and that he felt it was a warning. The boss promptly fired him. Worker confused, Why boss fire him?

If in a code language, DISTANCE is written as IDTUBECN and DOCUMENT is written as ODDVNTNE, the how will THURSDAY be coded as in the same language?

Can you place three balls such that the equation shown in the picture holds true?

What is in seasons, seconds, centuries and minutes but not in decades, years or days?

How can one talk without saying a single word?

What is the Surname of Barbie Doll?

I look at you, you look at me I raise my right, you raise your left. What am I?

You have a square. What you have to do is cut and reassemble the square such that you create a Red Cross sign that has the same volume as that of the square.