There was once a college that offered a class on probability applied to the real world. The class was relatively easy, but there was a catch. There were no homework assignments or tests, but there was a final exam that would have only one question on it. When everyone received the test paper it was a blank sheet of paper with a solitary question on it: 'What is the risk?'.Most students were able to pass, but only one student received 100% for the class! Even stranger was that he only wrote down one word!
What did he write?

Can you find the odd number in the following?

2716, 4135, 5321 and 7145

Can you identify the direction in which this bus is moving; left or right?

Hint: The bus is moving on the roads of London.

Lifeless eyes on my smiling face and watch your child's sleeping place. In their dreams they hold me tight. What am I?

Prove that the below maths equation is true.

8 + 8 = 91

What do you answer even though it never asks you questions?

Move three sticks of the spiral below to form a square.

A word I know,
Six letters contain,
Subtract just one,
And twelve is what remains.

Count the number of triangles in the picture below:

Cristina was born in 1888. She just had her 30th birthday today how did that happen?