TASK DEFINITION: A question that is free of any grammatical or logcal errors, should be labeled 'yes', otherwise it should be indicated as 'no'. A question is grammatically correct if all its entities i.e. nouns, verbs, adjectives, prepositions, pronouns, adverbs are at appropriate position. A question is logically correct if the semantic makes sense.
PROBLEM: Sentence: In the mean time fate had avenged Law on one of his lesser enemies. 
Question: How often did fate intervene?

SOLUTION: Yes.

PROBLEM: Sentence: Joe's parents are farmers and they have a huge farm with cows, chickens, and ducks. 
Question: What were Joe's parents before they were farmers?

SOLUTION: Yes.

PROBLEM: Sentence: Peter wanted to show off his bark, but he was too tired. 
Question: What time of day was it most likely?

SOLUTION:
Yes.

