What do you call a fish without an eye?

How can you throw a ball as hard as you can and have it come back to you even if it doesn't hit anything there is nothing attached to it and no one else catches or throws it.

Can you find out the total number of triangles in the given figure?

What does this simple rebus mean?

What number should come in place of the question mark below?

I have one of the three numbers: 1, 2, or 3 in my mind. I speak only truth. You can ask me just one question for which I will only reply in yes or no or don't know. What question will you ask from me so that you are able to know the number?

Count the number of triangles in the picture below:

Which part of London exists in France as well ?

In the image below, you can see two glasses and two matchsticks.You need to move four matchsticks in such a manner that the crosses come inside the glasses. Note: you cannot move the crossed.

I have no doors but I have keys, I have no rooms but I have space, you can enter but you can’t leave! What am I?