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

Find out the number of circles in the given picture having Illusion

I look at you, you look at me I raise my right, you raise your left. What am I?

Solve below popular number sequence
314 159 265 358 979 323 846 ?

What you cannot hold but it is yours?

You find yourself in a strange place guarded by two guards.One of the guard always say truth while other always lies.You don't know the identity of the two.You can ask only one question to go out from there. What should you ask?

A quarter is one-fourth of a dollar but Mr. John has changed the equation as below :

DOLLAR * 4 = QUARTER

Can you replace each letter with a digit to make the above solution correct?

Count the number of balls in picture below:

What has many keys but can’t open a single lock?

How can you spell "White of an egg" in one word?
Hint: I know you can spell coke, poke, and joke.