QUES:
The hunter ran out of ammunition.

What is a plausible effect?

ANS:
He reloaded the gun.

QUES:
I hung up the phone.

What is a plausible cause?

ANS:
The caller said goodbye to me.

QUES:
The spy discovered the enemy's location.

What is a plausible cause?

ANS:
The spy bugged the enemy's phone.

QUES:
My stomach growled.

What is a plausible cause?

ANS:
I forgot to eat breakfast.