With the help clues provided in the image, can you find the 5 digit key?

Which is heavier: a ton of bricks or a ton of feathers?

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 move 2 matchsticks to form four equal sized squares.

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

Can you find the odd number in the following five choices?

1) 482636
2) 259807
3) 865195
4) 104739
5) 391744

The measurement of time, That can't be found on a clock, But can be looked upon on a map.

Who is He ?

There was a strange boy who was born before his father. How can this be possible?

Forwards I am heavy, backward I am not. What am I?

Can you discover the missing number in this series?

37, 10, 82
29, 11, 47
96, 15, 87
42, ?, 15