If eleven plus two equals one, what does nine plus five equal?

In particular commonwealth games, a female participant won silver and gold medals for a single event.

How can this be possible?

How can you make a TV, a bed, a dog, and a car liquid?

John was piloting a plane behind a car but was never able to overtake it. Why?

What do you call a fish without an eye?

I am five letter word that is under you.
If you remove my 1st letter, then I am over you.
If you remove my 1st and 2nd letters then I am all around you.

Who am I?

A man has a barrel filled with oil that weighs 100 pounds, and then he puts something into it. Now the barrel weighs less than 100 pounds. What did he put in the barrel?

How can you write nineteen in a manner that if we take out one, it becomes twenty?

Trying to tease Birbal, Akbar gave him one gold coin and ask him to buy
* something for him to eat
* something for him to drink.
* something to feed the cows
* something to plant in the garden
and most important you need to buy only one thing.

What must Birbal buy to silence Akbar?

You are given a cube that is made with the help of 10x10x10 smaller cubes summing up to a total of 1000 smaller cubes. You are asked to take off one layer of the cubes.
How many remain now?