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

Can you count the number of triangles in the given picture?

What word is pronounced the same if you take away four of its five letters?

A horse was tied to a rope 5 meters long and the horses food was 15 meters away from the horse. How did the horse reach the food?

How many bananas can you eat if your stomach is empty?

There are four 3-link chains. All you have to do is join them into a big 12-link chain. For joining two closed links, one of the links must be cut and placed onto the other link for closing.

How many minimum links will you have to cut to make the big chain?

How can you make number one disappear by adding something to it?

Can you start the fire using two pieces of wood?

A spy was in Canada trying to steal insider information on how to set up new Maple Syrup factories in their country. He was introduced to the operations manager of the biggest factory in Canada. However, the manager was suspicious and decided to test him with a question before he trusted him. So he asked, “What would you be sure to find in the middle of Toronto?” The spy thought fast and came up with an answer for the manager. What was his answer?

John is the son of Jacob.
So,
Jacob is the_____of John's father?