What goes up but never comes down?

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

Can you make four (4) nines (9) equal 100?

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

Be active and find the killer in the picture Riddle below.

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

This is a classy optical illusion puzzle. What more you can find except bricks in the image below?

The picture shows the dice results in each couple of throws. If they are actually following a pattern, can you find out the missing one?

A man hijacks an aeroplane transporting both passengers(8 of them) and valuable cargo. After taking the cargo, the man demands nine parachutes, puts one of them on, and jumps, leaving the other eight behind. Why did he want eight?