Given a statement, generate a question such that the answer is contained in that statement.

[Q]: Butterflies have two pairs of wings for flight.
[A]: How many pairs of wings do Butterflies have?

[Q]: The volume of an object can be used to measure that object.
[A]: What can be used to measure an object?

[Q]: rattlesnakes can escape to avoid eagles
[A]:
What can escape to avoid eagles?