TASK DEFINITION: Given a fact, create a question that can be answered using the fact. Construct the question such that it is unambiguous, has a unique answer and the answer can be given using the fact.
PROBLEM: Fact: wind and rain cause erosion

SOLUTION: The face of the sphinx has changed from?

PROBLEM: Fact: some raccoons live in hollow logs

SOLUTION: If a thing is residing in a hollowed out part of a tree, then it is probably?

PROBLEM: Fact: phase changes do not change mass

SOLUTION:
If an ice cube that weighs 2 ounces melts, in liquid form, it will?