Can you find the key in the picture below?

What is the fastest way to double your money?

Here is a mathematical expression that also secretly tells a movie name. What movie is that?

Which alphabet letter is a question?

What mathematical symbol can be put between 5 and 9, to get a number bigger than 5 and smaller than 9?

An inspection by the superintendent of St. Joseph School was scheduled on the next day. The class teacher Jenifer knew that he would be asking questions from her class and she would have to choose a pupil to answer. To offer a perfect impression over him, the teacher explained certain instructions to the students to maximise the chances of getting correct answer every time.

What did she say to the students?

Replace the question mark with the correct number in below Picture:

Find the Goldfish below the given Image.

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

What is red and smells like blue paint?