What three numbers, none of which is zero, give the same result whether they’re added or multiplied?

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).

What can you serve, but never eat?

There are a number of books on a shelf. If one book is the 4th from the left and 6th from the right, how many books are on the shelf?

How many bricks does it take to complete a building that is 15 feet wide, 30 feet deep, and 12 feet tall made of brick?

By including only four matchsticks in below picture, you have to make "Four Triangles And Two Squares"

The person who makes it has no need for it. He who purchases it does not use it. The person who does use it does not know they are. What is it?

My friends called me Iron59 because my parents are a chemist and a mathematician. What is my real name?

The captain of a ship was telling this interesting story: "We travelled the sea far and wide. At one time, two of my sailors were standing on opposite sides of the ship. One was looking west and the other one east. And at the same time, they could see each other clearly." How can that be possible?

In my garden, I have many trees but only one of them is the mango tree. In these mango trees, there are some mangoes(as expected).

But after a strong wind, there are neither mangoes on the tree nor on the ground. Explain?