TASK DEFINITION: Given scientific fact as input, generate the question from this fact such that it can be answered from the input.
PROBLEM: Rubber is an example of a(n) insulators that does not allow electrons to move through them.

SOLUTION: Rubber is an example of what type of substances that do not allow electrons to move through them?

PROBLEM: Mercury is not a solid even at room temperature.

SOLUTION: Which metal is not a solid even at room temperature?

PROBLEM: Carbon is the most found element in living organisms.

SOLUTION:
Which common element is the most found in living organisms?