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

By removing one matchstick and adding one matchstick, can you convert the word "ZOO" to an animal name?

I know a country, If you remove the last alphabet of its name, it will become a part of your body. Do you name it?

A B C D E F G H

These are the letters given to you. Now you have to find out the letter that comes two to the right of the letter which is immediately to the left of the letter that comes three to the right of the letter that comes midway between the letter two to the left of the letter C and the letter immediately to the right of the letter F.

If EELS + MARK + BEST + WARY = EASY

What does HELP + BARK + WARD + LEAD equal?

Who always enjoys poor health?

Below the four parts have been reorganised. The four partitions are exactly the same in both arrangements. Why is there a hole?

There are three Athletes (John, Tarun and Harish) and their individual Coaches (Jacob, Meenaxi and Priyanka) standing on the shore.
No Coach trusts their Athlete to be near any other Coach unless they are also with them.
There is a boat that can hold a maximum of two persons.
How can the six people get across the river?

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

If all Goats are Sheep and all Sheep are Deers, are all Deers Goats ?